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[PATCH 3.16 147/233] HID: add quirk for Akai MIDImix.

Started byBen Hutchings <ben@decadent.org.uk>
First post2017-09-10 01:10 +0200
Last post2017-09-10 01:10 +0200
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  [PATCH 3.16 147/233] HID: add quirk for Akai MIDImix. Ben Hutchings <ben@decadent.org.uk> - 2017-09-10 01:10 +0200

#1729700 — [PATCH 3.16 147/233] HID: add quirk for Akai MIDImix.

FromBen Hutchings <ben@decadent.org.uk>
Date2017-09-10 01:10 +0200
Subject[PATCH 3.16 147/233] HID: add quirk for Akai MIDImix.
Message-ID<unX2V-3Jz-5@gated-at.bofh.it>
3.16.48-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: "Steinar H. Gunderson" <sgunderson@bigfoot.com>

commit 4973ca9a01e2354b159acedec1b9b8eb8de02ab7 upstream.

The Akai MIDImix (09e8:0031) is a MIDI fader controller that speaks
regular MIDI and works well with Linux. However, initialization gets
delayed due to reports timeout:

  [3643645.631124] hid-generic 0003:09E8:0031.0020: timeout initializing reports
  [3643645.632416] hid-generic 0003:09E8:0031.0020: hiddev0: USB HID v1.11 Device [AKAI MIDI Mix] on usb-0000:00:14.0-2/input0

Adding "usbhid.quirks=0x09e8:0x0031:0x20000000" on the kernel
command line makes the issues go away.

Signed-off-by: Steinar H. Gunderson <sgunderson@bigfoot.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
---
 drivers/hid/hid-ids.h           | 3 +++
 drivers/hid/usbhid/hid-quirks.c | 1 +
 2 files changed, 4 insertions(+)

--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -64,6 +64,9 @@
 #define USB_VENDOR_ID_AKAI		0x2011
 #define USB_DEVICE_ID_AKAI_MPKMINI2	0x0715
 
+#define USB_VENDOR_ID_AKAI_09E8		0x09E8
+#define USB_DEVICE_ID_AKAI_09E8_MIDIMIX	0x0031
+
 #define USB_VENDOR_ID_ALCOR		0x058f
 #define USB_DEVICE_ID_ALCOR_USBRS232	0x9720
 
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -56,6 +56,7 @@ static const struct hid_blacklist {
 
 	{ USB_VENDOR_ID_AIREN, USB_DEVICE_ID_AIREN_SLIMPLUS, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_AKAI, USB_DEVICE_ID_AKAI_MPKMINI2, HID_QUIRK_NO_INIT_REPORTS },
+	{ USB_VENDOR_ID_AKAI_09E8, USB_DEVICE_ID_AKAI_09E8_MIDIMIX, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_UC100KM, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_CS124U, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_ATEN, USB_DEVICE_ID_ATEN_2PORTKVM, HID_QUIRK_NOGET },

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