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Groups > linux.kernel > #1674506
| From | Julian Scheel <julian@jusst.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 1/3] usb: gadget: f_uac1: Fix endpoint reading |
| Date | 2017-06-26 09:40 +0200 |
| Message-ID | <tWwMP-7Pq-33@gated-at.bofh.it> (permalink) |
| References | <tWwMO-7Pq-23@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
The endpoint is stored in the lower byte of wIndex, according to USB
Audio 1.0 specification, section 5.2.1.1.
Signed-off-by: Julian Scheel <julian@jusst.de>
---
drivers/usb/gadget/function/f_uac1.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/gadget/function/f_uac1.c b/drivers/usb/gadget/function/f_uac1.c
index 8656f84e17d9..b955913bd7ea 100644
--- a/drivers/usb/gadget/function/f_uac1.c
+++ b/drivers/usb/gadget/function/f_uac1.c
@@ -327,7 +327,7 @@ static int audio_set_endpoint_req(struct usb_function *f,
{
struct usb_composite_dev *cdev = f->config->cdev;
int value = -EOPNOTSUPP;
- u16 ep = le16_to_cpu(ctrl->wIndex);
+ u8 ep = le16_to_cpu(ctrl->wIndex) & 0xff;
u16 len = le16_to_cpu(ctrl->wLength);
u16 w_value = le16_to_cpu(ctrl->wValue);
@@ -363,7 +363,7 @@ static int audio_get_endpoint_req(struct usb_function *f,
{
struct usb_composite_dev *cdev = f->config->cdev;
int value = -EOPNOTSUPP;
- u8 ep = ((le16_to_cpu(ctrl->wIndex) >> 8) & 0xFF);
+ u8 ep = le16_to_cpu(ctrl->wIndex) & 0xff;
u16 len = le16_to_cpu(ctrl->wLength);
u16 w_value = le16_to_cpu(ctrl->wValue);
--
2.13.1
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[PATCH 0/3] USB Audio Gadget: Support multiple sampling rates Julian Scheel <julian@jusst.de> - 2017-06-26 09:40 +0200 [PATCH 1/3] usb: gadget: f_uac1: Fix endpoint reading Julian Scheel <julian@jusst.de> - 2017-06-26 09:40 +0200 [PATCH 2/3] usb: gadget: f_uac*: Reduce code duplication Julian Scheel <julian@jusst.de> - 2017-06-26 09:40 +0200
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