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Groups > linux.kernel > #1274792 > unrolled thread

[PATCH] USB: quirks: Fix another ELAN touchscreen

Started byAdrien Vergé <adrienverge@gmail.com>
First post2015-11-22 05:10 +0100
Last post2015-11-24 16:10 +0100
Articles 15 — 5 participants

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  [PATCH] USB: quirks: Fix another ELAN touchscreen Adrien Vergé <adrienverge@gmail.com> - 2015-11-22 05:10 +0100
    Re: [PATCH] USB: quirks: Fix another ELAN touchscreen Jiri Kosina <jikos@kernel.org> - 2015-11-23 16:00 +0100
      Re: [PATCH] USB: quirks: Fix another ELAN touchscreen Adrien Vergé <adrienverge@gmail.com> - 2015-11-23 18:40 +0100
        Re: [PATCH] USB: quirks: Fix another ELAN touchscreen Oliver Neukum <oneukum@suse.com> - 2015-11-24 08:40 +0100
    [PATCH v2] USB: quirks: Fix another ELAN touchscreen Adrien Vergé <adrienverge@gmail.com> - 2015-11-23 18:50 +0100
    [PATCH v3 2/2] USB: quirks: Apply ALWAYS_POLL to all ELAN devices Adrien Vergé <adrienverge@gmail.com> - 2015-11-24 15:00 +0100
      Re: [PATCH v3 2/2] USB: quirks: Apply ALWAYS_POLL to all ELAN devices Benjamin Tissoires <benjamin.tissoires@gmail.com> - 2015-11-24 15:20 +0100
        Re: [PATCH v3 2/2] USB: quirks: Apply ALWAYS_POLL to all ELAN devices Adrien Vergé <adrienverge@gmail.com> - 2015-11-24 15:40 +0100
    [PATCH v3 1/2] USB: quirks: Fix another ELAN touchscreen Adrien Vergé <adrienverge@gmail.com> - 2015-11-24 15:00 +0100
    [PATCH v3 0/2] Fixes for ELAN touchscreens Adrien Vergé <adrienverge@gmail.com> - 2015-11-24 15:00 +0100
    [PATCH v4 0/2] Fixes for ELAN touchscreens Adrien Vergé <adrienverge@gmail.com> - 2015-11-24 16:10 +0100
      [PATCH v4 2/2] USB: quirks: Apply ALWAYS_POLL to all ELAN devices Adrien Vergé <adrienverge@gmail.com> - 2015-11-24 16:10 +0100
        Re: [PATCH v4 2/2] USB: quirks: Apply ALWAYS_POLL to all ELAN devices Benjamin Tissoires <benjamin.tissoires@gmail.com> - 2015-11-24 17:20 +0100
        Re: [PATCH v4 2/2] USB: quirks: Apply ALWAYS_POLL to all ELAN devices kbuild test robot <lkp@intel.com> - 2015-11-24 17:50 +0100
      [PATCH v4 1/2] USB: quirks: Fix another ELAN touchscreen Adrien Vergé <adrienverge@gmail.com> - 2015-11-24 16:10 +0100

#1274792 — [PATCH] USB: quirks: Fix another ELAN touchscreen

FromAdrien Vergé <adrienverge@gmail.com>
Date2015-11-22 05:10 +0100
Subject[PATCH] USB: quirks: Fix another ELAN touchscreen
Message-ID<qxu8p-6TL-1@gated-at.bofh.it>
Like other buggy models that had their fixes [1], the touchscreen with
id 04f3:21b8 from ELAN Microelectronics needs the device-qualifier
quirk. Otherwise, it fails to respond, blocks the boot for a random
amount of time and pollutes dmesg with:

[ 2887.373196] usb 1-5: new full-speed USB device number 41 using xhci_hcd
[ 2889.502000] usb 1-5: unable to read config index 0 descriptor/start: -71
[ 2889.502005] usb 1-5: can't read configurations, error -71
[ 2889.654571] usb 1-5: new full-speed USB device number 42 using xhci_hcd
[ 2891.783438] usb 1-5: unable to read config index 0 descriptor/start: -71
[ 2891.783443] usb 1-5: can't read configurations, error -71

[1]: See commits c68929f, 876af5d, d749947, a32c99e and dc703ec.

Tested-by: Adrien Vergé <adrienverge@gmail.com>
---
 drivers/hid/hid-ids.h           | 1 +
 drivers/hid/usbhid/hid-quirks.c | 1 +
 drivers/usb/core/quirks.c       | 3 +++
 3 files changed, 5 insertions(+)

diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index ac1feea..6b68408 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -321,6 +321,7 @@
 #define USB_DEVICE_ID_ELAN_TOUCHSCREEN_0103	0x0103
 #define USB_DEVICE_ID_ELAN_TOUCHSCREEN_010c	0x010c
 #define USB_DEVICE_ID_ELAN_TOUCHSCREEN_016F	0x016f
+#define USB_DEVICE_ID_ELAN_TOUCHSCREEN_21B8	0x21b8
 
 #define USB_VENDOR_ID_ELECOM		0x056e
 #define USB_DEVICE_ID_ELECOM_BM084	0x0061
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index 94bb137..7a45942 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -77,6 +77,7 @@ static const struct hid_blacklist {
 	{ USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_0103, HID_QUIRK_ALWAYS_POLL },
 	{ USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_010c, HID_QUIRK_ALWAYS_POLL },
 	{ USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_016F, HID_QUIRK_ALWAYS_POLL },
+	{ USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_21B8, HID_QUIRK_ALWAYS_POLL },
 	{ USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_FORMOSA, USB_DEVICE_ID_FORMOSA_IR_RECEIVER, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_FREESCALE, USB_DEVICE_ID_FREESCALE_MX28, HID_QUIRK_NOGET },
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index f5a3819..fcd6ac0 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -125,6 +125,9 @@ static const struct usb_device_id usb_quirk_list[] = {
 	{ USB_DEVICE(0x04f3, 0x016f), .driver_info =
 			USB_QUIRK_DEVICE_QUALIFIER },
 
+	{ USB_DEVICE(0x04f3, 0x21b8), .driver_info =
+			USB_QUIRK_DEVICE_QUALIFIER },
+
 	/* Roland SC-8820 */
 	{ USB_DEVICE(0x0582, 0x0007), .driver_info = USB_QUIRK_RESET_RESUME },
 
-- 
2.4.3

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#1275460

FromJiri Kosina <jikos@kernel.org>
Date2015-11-23 16:00 +0100
Message-ID<qy0KZ-3aB-5@gated-at.bofh.it>
In reply to#1274792
On Sat, 21 Nov 2015, Adrien Vergé wrote:

> Like other buggy models that had their fixes [1], the touchscreen with
> id 04f3:21b8 from ELAN Microelectronics needs the device-qualifier
> quirk. Otherwise, it fails to respond, blocks the boot for a random
> amount of time and pollutes dmesg with:
> 
> [ 2887.373196] usb 1-5: new full-speed USB device number 41 using xhci_hcd
> [ 2889.502000] usb 1-5: unable to read config index 0 descriptor/start: -71
> [ 2889.502005] usb 1-5: can't read configurations, error -71
> [ 2889.654571] usb 1-5: new full-speed USB device number 42 using xhci_hcd
> [ 2891.783438] usb 1-5: unable to read config index 0 descriptor/start: -71
> [ 2891.783443] usb 1-5: can't read configurations, error -71

The drivers/hid part is

	Acked-by: Jiri Kosina <jkosina@suse.cz>

Makes one wonder however whether we shouldn't be applying ALWAYS_POLL to 
all ELAN devices by default anyway.

> [1]: See commits c68929f, 876af5d, d749947, a32c99e and dc703ec.
> 
> Tested-by: Adrien Vergé <adrienverge@gmail.com>

You need signoff here as well so that the patch can be applied.

Thanks,

-- 
Jiri Kosina
SUSE Labs

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#1275666

FromAdrien Vergé <adrienverge@gmail.com>
Date2015-11-23 18:40 +0100
Message-ID<qy3fP-4Y1-21@gated-at.bofh.it>
In reply to#1275460
2015-11-23 15:52 GMT+01:00 Jiri Kosina <jikos@kernel.org>:

> The drivers/hid part is
>
>         Acked-by: Jiri Kosina <jkosina@suse.cz>

Thanks.

> Makes one wonder however whether we shouldn't be applying ALWAYS_POLL to
> all ELAN devices by default anyway.

True! But I don't want to risk breaking anything on other models in this patch.

I'll submit a v2 with appropriate signed-off-by and acked-by.
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#1276105

FromOliver Neukum <oneukum@suse.com>
Date2015-11-24 08:40 +0100
Message-ID<qygmK-558-3@gated-at.bofh.it>
In reply to#1275666
On Mon, 2015-11-23 at 18:37 +0100, Adrien Vergé wrote:
> > Makes one wonder however whether we shouldn't be applying
> ALWAYS_POLL to
> > all ELAN devices by default anyway.
> 
> True! But I don't want to risk breaking anything on other models in
> this patch.

ALWAYS_POLL just extends an existing behavior. The chances
of breaking anything are slim. I'd go for the approach
based on the vendor ID.

	Regards
		Oliver


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#1275672 — [PATCH v2] USB: quirks: Fix another ELAN touchscreen

FromAdrien Vergé <adrienverge@gmail.com>
Date2015-11-23 18:50 +0100
Subject[PATCH v2] USB: quirks: Fix another ELAN touchscreen
Message-ID<qy3pw-51A-5@gated-at.bofh.it>
In reply to#1274792
Like other buggy models that had their fixes [1], the touchscreen with
id 04f3:21b8 from ELAN Microelectronics needs the device-qualifier
quirk. Otherwise, it fails to respond, blocks the boot for a random
amount of time and pollutes dmesg with:

[ 2887.373196] usb 1-5: new full-speed USB device number 41 using xhci_hcd
[ 2889.502000] usb 1-5: unable to read config index 0 descriptor/start: -71
[ 2889.502005] usb 1-5: can't read configurations, error -71
[ 2889.654571] usb 1-5: new full-speed USB device number 42 using xhci_hcd
[ 2891.783438] usb 1-5: unable to read config index 0 descriptor/start: -71
[ 2891.783443] usb 1-5: can't read configurations, error -71

[1]: See commits c68929f, 876af5d, d749947, a32c99e and dc703ec.

Tested-by: Adrien Vergé <adrienverge@gmail.com>
Signed-off-by: Adrien Vergé <adrienverge@gmail.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
---
 drivers/hid/hid-ids.h           | 1 +
 drivers/hid/usbhid/hid-quirks.c | 1 +
 drivers/usb/core/quirks.c       | 3 +++
 3 files changed, 5 insertions(+)

diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index ac1feea..6b68408 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -321,6 +321,7 @@
 #define USB_DEVICE_ID_ELAN_TOUCHSCREEN_0103	0x0103
 #define USB_DEVICE_ID_ELAN_TOUCHSCREEN_010c	0x010c
 #define USB_DEVICE_ID_ELAN_TOUCHSCREEN_016F	0x016f
+#define USB_DEVICE_ID_ELAN_TOUCHSCREEN_21B8	0x21b8
 
 #define USB_VENDOR_ID_ELECOM		0x056e
 #define USB_DEVICE_ID_ELECOM_BM084	0x0061
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index 94bb137..7a45942 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -77,6 +77,7 @@ static const struct hid_blacklist {
 	{ USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_0103, HID_QUIRK_ALWAYS_POLL },
 	{ USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_010c, HID_QUIRK_ALWAYS_POLL },
 	{ USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_016F, HID_QUIRK_ALWAYS_POLL },
+	{ USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_21B8, HID_QUIRK_ALWAYS_POLL },
 	{ USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_FORMOSA, USB_DEVICE_ID_FORMOSA_IR_RECEIVER, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_FREESCALE, USB_DEVICE_ID_FREESCALE_MX28, HID_QUIRK_NOGET },
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index f5a3819..fcd6ac0 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -125,6 +125,9 @@ static const struct usb_device_id usb_quirk_list[] = {
 	{ USB_DEVICE(0x04f3, 0x016f), .driver_info =
 			USB_QUIRK_DEVICE_QUALIFIER },
 
+	{ USB_DEVICE(0x04f3, 0x21b8), .driver_info =
+			USB_QUIRK_DEVICE_QUALIFIER },
+
 	/* Roland SC-8820 */
 	{ USB_DEVICE(0x0582, 0x0007), .driver_info = USB_QUIRK_RESET_RESUME },
 
-- 
2.5.0

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#1276486 — [PATCH v3 2/2] USB: quirks: Apply ALWAYS_POLL to all ELAN devices

FromAdrien Vergé <adrienverge@gmail.com>
Date2015-11-24 15:00 +0100
Subject[PATCH v3 2/2] USB: quirks: Apply ALWAYS_POLL to all ELAN devices
Message-ID<qymiu-n6-15@gated-at.bofh.it>
In reply to#1274792
All ELAN hid devices seem to require the ALWAYS_POLL quirk. Let's use
this quirk for all devices from this vendor, rather than maintaining a
list of all its known product IDs.

To achieve that, this patch introduces a new hid_vendor_blacklist[] that
is checked when the product ID is not found in hid_product_blacklist[].

Tested-by: Adrien Vergé <adrienverge@gmail.com>
Signed-off-by: Adrien Vergé <adrienverge@gmail.com>
---
 drivers/hid/hid-ids.h           |  5 -----
 drivers/hid/usbhid/hid-quirks.c | 43 +++++++++++++++++++++++++++--------------
 2 files changed, 29 insertions(+), 19 deletions(-)

diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index ac1feea..3c7e0c3 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -316,11 +316,6 @@
 #define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001	0xa001
 
 #define USB_VENDOR_ID_ELAN		0x04f3
-#define USB_DEVICE_ID_ELAN_TOUCHSCREEN	0x0089
-#define USB_DEVICE_ID_ELAN_TOUCHSCREEN_009B	0x009b
-#define USB_DEVICE_ID_ELAN_TOUCHSCREEN_0103	0x0103
-#define USB_DEVICE_ID_ELAN_TOUCHSCREEN_010c	0x010c
-#define USB_DEVICE_ID_ELAN_TOUCHSCREEN_016F	0x016f
 
 #define USB_VENDOR_ID_ELECOM		0x056e
 #define USB_DEVICE_ID_ELECOM_BM084	0x0061
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index 94bb137..9550497 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -21,15 +21,29 @@
 
 #include "../hid-ids.h"
 
+struct hid_blacklist {
+	__u16 idVendor;
+	__u16 idProduct;
+	__u32 quirks;
+};
+
+/*
+ * Alphabetically sorted blacklist for vendor-global quirks. If a device matches
+ * both this blacklist and the product one (below), the more specific one
+ * (product ID) prevails.
+ */
+
+static const struct hid_blacklist hid_vendor_blacklist[] = {
+	{ USB_VENDOR_ID_ELAN, 0, HID_QUIRK_ALWAYS_POLL },
+
+	{ 0, 0, 0 }
+};
+
 /*
  * Alphabetically sorted blacklist by quirk type.
  */
 
-static const struct hid_blacklist {
-	__u16 idVendor;
-	__u16 idProduct;
-	__u32 quirks;
-} hid_blacklist[] = {
+static const struct hid_blacklist hid_product_blacklist[] = {
 	{ USB_VENDOR_ID_AASHIMA, USB_DEVICE_ID_AASHIMA_GAMEPAD, HID_QUIRK_BADPAD },
 	{ USB_VENDOR_ID_AASHIMA, USB_DEVICE_ID_AASHIMA_PREDATOR, HID_QUIRK_BADPAD },
 	{ USB_VENDOR_ID_ALPS, USB_DEVICE_ID_IBM_GAMEPAD, HID_QUIRK_BADPAD },
@@ -72,11 +86,6 @@ static const struct hid_blacklist {
 	{ USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE, HID_QUIRK_ALWAYS_POLL },
 	{ USB_VENDOR_ID_DMI, USB_DEVICE_ID_DMI_ENC, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_WIIU, HID_QUIRK_MULTI_INPUT },
-	{ USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN, HID_QUIRK_ALWAYS_POLL },
-	{ USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_009B, HID_QUIRK_ALWAYS_POLL },
-	{ USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_0103, HID_QUIRK_ALWAYS_POLL },
-	{ USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_010c, HID_QUIRK_ALWAYS_POLL },
-	{ USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_016F, HID_QUIRK_ALWAYS_POLL },
 	{ USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_FORMOSA, USB_DEVICE_ID_FORMOSA_IR_RECEIVER, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_FREESCALE, USB_DEVICE_ID_FREESCALE_MX28, HID_QUIRK_NOGET },
@@ -337,10 +346,16 @@ static const struct hid_blacklist *usbhid_exists_squirk(const u16 idVendor,
 	const struct hid_blacklist *bl_entry = NULL;
 	int n = 0;
 
-	for (; hid_blacklist[n].idVendor; n++)
-		if (hid_blacklist[n].idVendor == idVendor &&
-				hid_blacklist[n].idProduct == idProduct)
-			bl_entry = &hid_blacklist[n];
+	for (; hid_product_blacklist[n].idVendor; n++)
+		if (hid_product_blacklist[n].idVendor == idVendor &&
+				hid_product_blacklist[n].idProduct == idProduct)
+			bl_entry = &hid_product_blacklist[n];
+
+	if (bl_entry == NULL) {
+		for (n = 0; hid_vendor_blacklist[n].idVendor; n++)
+			if (hid_vendor_blacklist[n].idVendor == idVendor)
+				bl_entry = &hid_vendor_blacklist[n];
+	}
 
 	if (bl_entry != NULL)
 		dbg_hid("Found squirk 0x%x for USB HID vendor 0x%hx prod 0x%hx\n",
-- 
2.4.3

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#1276508 — Re: [PATCH v3 2/2] USB: quirks: Apply ALWAYS_POLL to all ELAN devices

FromBenjamin Tissoires <benjamin.tissoires@gmail.com>
Date2015-11-24 15:20 +0100
SubjectRe: [PATCH v3 2/2] USB: quirks: Apply ALWAYS_POLL to all ELAN devices
Message-ID<qymBP-JT-1@gated-at.bofh.it>
In reply to#1276486
Hi Adrien,

On Tue, Nov 24, 2015 at 2:49 PM, Adrien Vergé <adrienverge@gmail.com> wrote:
> All ELAN hid devices seem to require the ALWAYS_POLL quirk. Let's use
> this quirk for all devices from this vendor, rather than maintaining a
> list of all its known product IDs.
>
> To achieve that, this patch introduces a new hid_vendor_blacklist[] that
> is checked when the product ID is not found in hid_product_blacklist[].
>
> Tested-by: Adrien Vergé <adrienverge@gmail.com>
> Signed-off-by: Adrien Vergé <adrienverge@gmail.com>
> ---
>  drivers/hid/hid-ids.h           |  5 -----
>  drivers/hid/usbhid/hid-quirks.c | 43 +++++++++++++++++++++++++++--------------
>  2 files changed, 29 insertions(+), 19 deletions(-)
>
> diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
> index ac1feea..3c7e0c3 100644
> --- a/drivers/hid/hid-ids.h
> +++ b/drivers/hid/hid-ids.h
> @@ -316,11 +316,6 @@
>  #define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001      0xa001
>
>  #define USB_VENDOR_ID_ELAN             0x04f3
> -#define USB_DEVICE_ID_ELAN_TOUCHSCREEN 0x0089
> -#define USB_DEVICE_ID_ELAN_TOUCHSCREEN_009B    0x009b
> -#define USB_DEVICE_ID_ELAN_TOUCHSCREEN_0103    0x0103
> -#define USB_DEVICE_ID_ELAN_TOUCHSCREEN_010c    0x010c
> -#define USB_DEVICE_ID_ELAN_TOUCHSCREEN_016F    0x016f
>
>  #define USB_VENDOR_ID_ELECOM           0x056e
>  #define USB_DEVICE_ID_ELECOM_BM084     0x0061
> diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
> index 94bb137..9550497 100644
> --- a/drivers/hid/usbhid/hid-quirks.c
> +++ b/drivers/hid/usbhid/hid-quirks.c
> @@ -21,15 +21,29 @@
>
>  #include "../hid-ids.h"
>
> +struct hid_blacklist {
> +       __u16 idVendor;
> +       __u16 idProduct;
> +       __u32 quirks;
> +};
> +
> +/*
> + * Alphabetically sorted blacklist for vendor-global quirks. If a device matches
> + * both this blacklist and the product one (below), the more specific one
> + * (product ID) prevails.
> + */
> +
> +static const struct hid_blacklist hid_vendor_blacklist[] = {
> +       { USB_VENDOR_ID_ELAN, 0, HID_QUIRK_ALWAYS_POLL },
> +
> +       { 0, 0, 0 }
> +};

Instead of adding a second table, I'd rather have a match on
HID_ANY_ID for the product ID.

> +
>  /*
>   * Alphabetically sorted blacklist by quirk type.
>   */
>
> -static const struct hid_blacklist {
> -       __u16 idVendor;
> -       __u16 idProduct;
> -       __u32 quirks;
> -} hid_blacklist[] = {
> +static const struct hid_blacklist hid_product_blacklist[] = {
>         { USB_VENDOR_ID_AASHIMA, USB_DEVICE_ID_AASHIMA_GAMEPAD, HID_QUIRK_BADPAD },
>         { USB_VENDOR_ID_AASHIMA, USB_DEVICE_ID_AASHIMA_PREDATOR, HID_QUIRK_BADPAD },
>         { USB_VENDOR_ID_ALPS, USB_DEVICE_ID_IBM_GAMEPAD, HID_QUIRK_BADPAD },
> @@ -72,11 +86,6 @@ static const struct hid_blacklist {
>         { USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE, HID_QUIRK_ALWAYS_POLL },
>         { USB_VENDOR_ID_DMI, USB_DEVICE_ID_DMI_ENC, HID_QUIRK_NOGET },
>         { USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_WIIU, HID_QUIRK_MULTI_INPUT },
> -       { USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN, HID_QUIRK_ALWAYS_POLL },
> -       { USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_009B, HID_QUIRK_ALWAYS_POLL },
> -       { USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_0103, HID_QUIRK_ALWAYS_POLL },
> -       { USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_010c, HID_QUIRK_ALWAYS_POLL },
> -       { USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_016F, HID_QUIRK_ALWAYS_POLL },

This becomes:
{ USB_VENDOR_ID_ELAN, HID_ANY_ID, HID_QUIRK_ALWAYS_POLL },

>         { USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET },
>         { USB_VENDOR_ID_FORMOSA, USB_DEVICE_ID_FORMOSA_IR_RECEIVER, HID_QUIRK_NO_INIT_REPORTS },
>         { USB_VENDOR_ID_FREESCALE, USB_DEVICE_ID_FREESCALE_MX28, HID_QUIRK_NOGET },
> @@ -337,10 +346,16 @@ static const struct hid_blacklist *usbhid_exists_squirk(const u16 idVendor,
>         const struct hid_blacklist *bl_entry = NULL;
>         int n = 0;
>
> -       for (; hid_blacklist[n].idVendor; n++)
> -               if (hid_blacklist[n].idVendor == idVendor &&
> -                               hid_blacklist[n].idProduct == idProduct)

And here you need to check also on the match with HID_ANY_ID for both
idVendor and idProduct.

Cheers,
Benjamin

> -                       bl_entry = &hid_blacklist[n];
> +       for (; hid_product_blacklist[n].idVendor; n++)
> +               if (hid_product_blacklist[n].idVendor == idVendor &&
> +                               hid_product_blacklist[n].idProduct == idProduct)
> +                       bl_entry = &hid_product_blacklist[n];
> +
> +       if (bl_entry == NULL) {
> +               for (n = 0; hid_vendor_blacklist[n].idVendor; n++)
> +                       if (hid_vendor_blacklist[n].idVendor == idVendor)
> +                               bl_entry = &hid_vendor_blacklist[n];
> +       }
>
>         if (bl_entry != NULL)
>                 dbg_hid("Found squirk 0x%x for USB HID vendor 0x%hx prod 0x%hx\n",
> --
> 2.4.3
>
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#1276516 — Re: [PATCH v3 2/2] USB: quirks: Apply ALWAYS_POLL to all ELAN devices

FromAdrien Vergé <adrienverge@gmail.com>
Date2015-11-24 15:40 +0100
SubjectRe: [PATCH v3 2/2] USB: quirks: Apply ALWAYS_POLL to all ELAN devices
Message-ID<qymVc-Ro-23@gated-at.bofh.it>
In reply to#1276508
2015-11-24 15:11 GMT+01:00 Benjamin Tissoires <benjamin.tissoires@gmail.com>:

> Instead of adding a second table, I'd rather have a match on
> HID_ANY_ID for the product ID.

Thanks Benjamin, the way you propose is much cleaner. (I actually
looked for such a *wildcard* product id, but apparently didn't looked
deep enough!)
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#1276495 — [PATCH v3 1/2] USB: quirks: Fix another ELAN touchscreen

FromAdrien Vergé <adrienverge@gmail.com>
Date2015-11-24 15:00 +0100
Subject[PATCH v3 1/2] USB: quirks: Fix another ELAN touchscreen
Message-ID<qymiv-n6-41@gated-at.bofh.it>
In reply to#1274792
Like other buggy models that had their fixes [1], the touchscreen with
id 04f3:21b8 from ELAN Microelectronics needs the device-qualifier
quirk. Otherwise, it fails to respond, blocks the boot for a random
amount of time and pollutes dmesg with:

[ 2887.373196] usb 1-5: new full-speed USB device number 41 using xhci_hcd
[ 2889.502000] usb 1-5: unable to read config index 0 descriptor/start: -71
[ 2889.502005] usb 1-5: can't read configurations, error -71
[ 2889.654571] usb 1-5: new full-speed USB device number 42 using xhci_hcd
[ 2891.783438] usb 1-5: unable to read config index 0 descriptor/start: -71
[ 2891.783443] usb 1-5: can't read configurations, error -71

[1]: See commits c68929f, 876af5d, d749947, a32c99e and dc703ec.

Tested-by: Adrien Vergé <adrienverge@gmail.com>
Signed-off-by: Adrien Vergé <adrienverge@gmail.com>
---
 drivers/usb/core/quirks.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index f5a3819..fcd6ac0 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -125,6 +125,9 @@ static const struct usb_device_id usb_quirk_list[] = {
 	{ USB_DEVICE(0x04f3, 0x016f), .driver_info =
 			USB_QUIRK_DEVICE_QUALIFIER },
 
+	{ USB_DEVICE(0x04f3, 0x21b8), .driver_info =
+			USB_QUIRK_DEVICE_QUALIFIER },
+
 	/* Roland SC-8820 */
 	{ USB_DEVICE(0x0582, 0x0007), .driver_info = USB_QUIRK_RESET_RESUME },
 
-- 
2.4.3

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#1276497 — [PATCH v3 0/2] Fixes for ELAN touchscreens

FromAdrien Vergé <adrienverge@gmail.com>
Date2015-11-24 15:00 +0100
Subject[PATCH v3 0/2] Fixes for ELAN touchscreens
Message-ID<qymiu-n6-17@gated-at.bofh.it>
In reply to#1274792
This is the third version of a patchset which originally aimed to fix a buggy
touchscreen from ELAN Microelectronics.

Thanks to feedback from Jiri Kosina and Oliver Neukum, the ALWAYS_POLL quirk is
now applied to all ELAN devices by default.

Adrien Vergé (2):
  USB: quirks: Fix another ELAN touchscreen
  USB: quirks: Apply ALWAYS_POLL to all ELAN devices

 drivers/hid/hid-ids.h           |  5 -----
 drivers/hid/usbhid/hid-quirks.c | 43 +++++++++++++++++++++++++++--------------
 drivers/usb/core/quirks.c       |  3 +++
 3 files changed, 32 insertions(+), 19 deletions(-)

-- 
2.4.3

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#1276549 — [PATCH v4 0/2] Fixes for ELAN touchscreens

FromAdrien Vergé <adrienverge@gmail.com>
Date2015-11-24 16:10 +0100
Subject[PATCH v4 0/2] Fixes for ELAN touchscreens
Message-ID<qynod-1lP-5@gated-at.bofh.it>
In reply to#1274792
This is the fourth version of a patchset which originally aimed to fix a buggy
touchscreen from ELAN Microelectronics.

Changes since v3:
- Use HID_ANY_ID to define a vendor-ID-global quirk, as suggested by
  Benjamin Tissoires.

Changes since v2:
- Apply ALWAYS_POLL quirk to all ELAN devices by default, as suggested by
  Jiri Kosina and Oliver Neukum.

Adrien Vergé (2):
  USB: quirks: Fix another ELAN touchscreen
  USB: quirks: Apply ALWAYS_POLL to all ELAN devices

 drivers/hid/hid-ids.h           | 5 -----
 drivers/hid/usbhid/hid-quirks.c | 9 +++------
 drivers/usb/core/quirks.c       | 3 +++
 3 files changed, 6 insertions(+), 11 deletions(-)

-- 
2.4.3

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#1276554 — [PATCH v4 2/2] USB: quirks: Apply ALWAYS_POLL to all ELAN devices

FromAdrien Vergé <adrienverge@gmail.com>
Date2015-11-24 16:10 +0100
Subject[PATCH v4 2/2] USB: quirks: Apply ALWAYS_POLL to all ELAN devices
Message-ID<qynoe-1lP-23@gated-at.bofh.it>
In reply to#1276549
All ELAN hid devices seem to require the ALWAYS_POLL quirk. Let's use
this quirk for all devices from this vendor, rather than maintaining a
list of all its known product IDs.

Tested-by: Adrien Vergé <adrienverge@gmail.com>
Signed-off-by: Adrien Vergé <adrienverge@gmail.com>
---
 drivers/hid/hid-ids.h           | 5 -----
 drivers/hid/usbhid/hid-quirks.c | 9 +++------
 2 files changed, 3 insertions(+), 11 deletions(-)

diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index ac1feea..3c7e0c3 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -316,11 +316,6 @@
 #define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001	0xa001
 
 #define USB_VENDOR_ID_ELAN		0x04f3
-#define USB_DEVICE_ID_ELAN_TOUCHSCREEN	0x0089
-#define USB_DEVICE_ID_ELAN_TOUCHSCREEN_009B	0x009b
-#define USB_DEVICE_ID_ELAN_TOUCHSCREEN_0103	0x0103
-#define USB_DEVICE_ID_ELAN_TOUCHSCREEN_010c	0x010c
-#define USB_DEVICE_ID_ELAN_TOUCHSCREEN_016F	0x016f
 
 #define USB_VENDOR_ID_ELECOM		0x056e
 #define USB_DEVICE_ID_ELECOM_BM084	0x0061
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index 94bb137..b1af008 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -72,11 +72,7 @@ static const struct hid_blacklist {
 	{ USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE, HID_QUIRK_ALWAYS_POLL },
 	{ USB_VENDOR_ID_DMI, USB_DEVICE_ID_DMI_ENC, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_WIIU, HID_QUIRK_MULTI_INPUT },
-	{ USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN, HID_QUIRK_ALWAYS_POLL },
-	{ USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_009B, HID_QUIRK_ALWAYS_POLL },
-	{ USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_0103, HID_QUIRK_ALWAYS_POLL },
-	{ USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_010c, HID_QUIRK_ALWAYS_POLL },
-	{ USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_016F, HID_QUIRK_ALWAYS_POLL },
+	{ USB_VENDOR_ID_ELAN, HID_ANY_ID, HID_QUIRK_ALWAYS_POLL },
 	{ USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_FORMOSA, USB_DEVICE_ID_FORMOSA_IR_RECEIVER, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_FREESCALE, USB_DEVICE_ID_FREESCALE_MX28, HID_QUIRK_NOGET },
@@ -339,7 +335,8 @@ static const struct hid_blacklist *usbhid_exists_squirk(const u16 idVendor,
 
 	for (; hid_blacklist[n].idVendor; n++)
 		if (hid_blacklist[n].idVendor == idVendor &&
-				hid_blacklist[n].idProduct == idProduct)
+			(hid_blacklist[n].idProduct == HID_ANY_ID ||
+				hid_blacklist[n].idProduct == idProduct))
 			bl_entry = &hid_blacklist[n];
 
 	if (bl_entry != NULL)
-- 
2.4.3

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#1276606 — Re: [PATCH v4 2/2] USB: quirks: Apply ALWAYS_POLL to all ELAN devices

FromBenjamin Tissoires <benjamin.tissoires@gmail.com>
Date2015-11-24 17:20 +0100
SubjectRe: [PATCH v4 2/2] USB: quirks: Apply ALWAYS_POLL to all ELAN devices
Message-ID<qyotX-21n-15@gated-at.bofh.it>
In reply to#1276554
On Tue, Nov 24, 2015 at 4:02 PM, Adrien Vergé <adrienverge@gmail.com> wrote:
> All ELAN hid devices seem to require the ALWAYS_POLL quirk. Let's use
> this quirk for all devices from this vendor, rather than maintaining a
> list of all its known product IDs.
>
> Tested-by: Adrien Vergé <adrienverge@gmail.com>
> Signed-off-by: Adrien Vergé <adrienverge@gmail.com>
> ---

The HID part is:
Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>

Cheers,
Benjamin

>  drivers/hid/hid-ids.h           | 5 -----
>  drivers/hid/usbhid/hid-quirks.c | 9 +++------
>  2 files changed, 3 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
> index ac1feea..3c7e0c3 100644
> --- a/drivers/hid/hid-ids.h
> +++ b/drivers/hid/hid-ids.h
> @@ -316,11 +316,6 @@
>  #define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001      0xa001
>
>  #define USB_VENDOR_ID_ELAN             0x04f3
> -#define USB_DEVICE_ID_ELAN_TOUCHSCREEN 0x0089
> -#define USB_DEVICE_ID_ELAN_TOUCHSCREEN_009B    0x009b
> -#define USB_DEVICE_ID_ELAN_TOUCHSCREEN_0103    0x0103
> -#define USB_DEVICE_ID_ELAN_TOUCHSCREEN_010c    0x010c
> -#define USB_DEVICE_ID_ELAN_TOUCHSCREEN_016F    0x016f
>
>  #define USB_VENDOR_ID_ELECOM           0x056e
>  #define USB_DEVICE_ID_ELECOM_BM084     0x0061
> diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
> index 94bb137..b1af008 100644
> --- a/drivers/hid/usbhid/hid-quirks.c
> +++ b/drivers/hid/usbhid/hid-quirks.c
> @@ -72,11 +72,7 @@ static const struct hid_blacklist {
>         { USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_PIXART_USB_OPTICAL_MOUSE, HID_QUIRK_ALWAYS_POLL },
>         { USB_VENDOR_ID_DMI, USB_DEVICE_ID_DMI_ENC, HID_QUIRK_NOGET },
>         { USB_VENDOR_ID_DRAGONRISE, USB_DEVICE_ID_DRAGONRISE_WIIU, HID_QUIRK_MULTI_INPUT },
> -       { USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN, HID_QUIRK_ALWAYS_POLL },
> -       { USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_009B, HID_QUIRK_ALWAYS_POLL },
> -       { USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_0103, HID_QUIRK_ALWAYS_POLL },
> -       { USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_010c, HID_QUIRK_ALWAYS_POLL },
> -       { USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ELAN_TOUCHSCREEN_016F, HID_QUIRK_ALWAYS_POLL },
> +       { USB_VENDOR_ID_ELAN, HID_ANY_ID, HID_QUIRK_ALWAYS_POLL },
>         { USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET },
>         { USB_VENDOR_ID_FORMOSA, USB_DEVICE_ID_FORMOSA_IR_RECEIVER, HID_QUIRK_NO_INIT_REPORTS },
>         { USB_VENDOR_ID_FREESCALE, USB_DEVICE_ID_FREESCALE_MX28, HID_QUIRK_NOGET },
> @@ -339,7 +335,8 @@ static const struct hid_blacklist *usbhid_exists_squirk(const u16 idVendor,
>
>         for (; hid_blacklist[n].idVendor; n++)
>                 if (hid_blacklist[n].idVendor == idVendor &&
> -                               hid_blacklist[n].idProduct == idProduct)
> +                       (hid_blacklist[n].idProduct == HID_ANY_ID ||
> +                               hid_blacklist[n].idProduct == idProduct))
>                         bl_entry = &hid_blacklist[n];
>
>         if (bl_entry != NULL)
> --
> 2.4.3
>
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#1276636 — Re: [PATCH v4 2/2] USB: quirks: Apply ALWAYS_POLL to all ELAN devices

Fromkbuild test robot <lkp@intel.com>
Date2015-11-24 17:50 +0100
SubjectRe: [PATCH v4 2/2] USB: quirks: Apply ALWAYS_POLL to all ELAN devices
Message-ID<qyoWZ-2d3-1@gated-at.bofh.it>
In reply to#1276554

[Multipart message — attachments visible in raw view] — view raw

Hi Adrien,

[auto build test WARNING on hid/for-next]
[also build test WARNING on v4.4-rc2 next-20151124]

url:    https://github.com/0day-ci/linux/commits/Adrien-Verg/Fixes-for-ELAN-touchscreens/20151124-230537
base:   https://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid.git for-next
config: avr32-hammerhead_defconfig (attached as .config)
reproduce:
        wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # save the attached .config to linux build tree
        make.cross ARCH=avr32 

All warnings (new ones prefixed by >>):

   drivers/hid/usbhid/hid-quirks.c: In function 'usbhid_exists_squirk':
>> drivers/hid/usbhid/hid-quirks.c:339: warning: comparison is always false due to limited range of data type

vim +339 drivers/hid/usbhid/hid-quirks.c

   323	 * @idProduct: the 16-bit USB product ID, in native byteorder
   324	 *
   325	 * Description:
   326	 *     Given a USB vendor ID and product ID, return a pointer to
   327	 *     the hid_blacklist entry associated with that device.
   328	 *
   329	 * Returns: pointer if quirk found, or NULL if no quirks found.
   330	 */
   331	static const struct hid_blacklist *usbhid_exists_squirk(const u16 idVendor,
   332			const u16 idProduct)
   333	{
   334		const struct hid_blacklist *bl_entry = NULL;
   335		int n = 0;
   336	
   337		for (; hid_blacklist[n].idVendor; n++)
   338			if (hid_blacklist[n].idVendor == idVendor &&
 > 339				(hid_blacklist[n].idProduct == HID_ANY_ID ||
   340					hid_blacklist[n].idProduct == idProduct))
   341				bl_entry = &hid_blacklist[n];
   342	
   343		if (bl_entry != NULL)
   344			dbg_hid("Found squirk 0x%x for USB HID vendor 0x%hx prod 0x%hx\n",
   345					bl_entry->quirks, bl_entry->idVendor, 
   346					bl_entry->idProduct);
   347		return bl_entry;

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation

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#1276556 — [PATCH v4 1/2] USB: quirks: Fix another ELAN touchscreen

FromAdrien Vergé <adrienverge@gmail.com>
Date2015-11-24 16:10 +0100
Subject[PATCH v4 1/2] USB: quirks: Fix another ELAN touchscreen
Message-ID<qynoe-1lP-29@gated-at.bofh.it>
In reply to#1276549
Like other buggy models that had their fixes [1], the touchscreen with
id 04f3:21b8 from ELAN Microelectronics needs the device-qualifier
quirk. Otherwise, it fails to respond, blocks the boot for a random
amount of time and pollutes dmesg with:

[ 2887.373196] usb 1-5: new full-speed USB device number 41 using xhci_hcd
[ 2889.502000] usb 1-5: unable to read config index 0 descriptor/start: -71
[ 2889.502005] usb 1-5: can't read configurations, error -71
[ 2889.654571] usb 1-5: new full-speed USB device number 42 using xhci_hcd
[ 2891.783438] usb 1-5: unable to read config index 0 descriptor/start: -71
[ 2891.783443] usb 1-5: can't read configurations, error -71

[1]: See commits c68929f, 876af5d, d749947, a32c99e and dc703ec.

Tested-by: Adrien Vergé <adrienverge@gmail.com>
Signed-off-by: Adrien Vergé <adrienverge@gmail.com>
---
 drivers/usb/core/quirks.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index f5a3819..fcd6ac0 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -125,6 +125,9 @@ static const struct usb_device_id usb_quirk_list[] = {
 	{ USB_DEVICE(0x04f3, 0x016f), .driver_info =
 			USB_QUIRK_DEVICE_QUALIFIER },
 
+	{ USB_DEVICE(0x04f3, 0x21b8), .driver_info =
+			USB_QUIRK_DEVICE_QUALIFIER },
+
 	/* Roland SC-8820 */
 	{ USB_DEVICE(0x0582, 0x0007), .driver_info = USB_QUIRK_RESET_RESUME },
 
-- 
2.4.3

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