On Audio class, the wLength field of the Setup
packet, contains the data payload size of the
following Data phase. Instead of harcoding values,
use wLength.
This also fixes a bug where Gadget driver had to
receive 3 bytes, but it was queueing a ZLP.
Signed-off-by: Felipe Balbi <balbi@xxxxxx>
---
Patch available on my gadget branch. Will be
sent to Greg on pull request by the end of
next week.
drivers/usb/gadget/f_audio.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/gadget/f_audio.c b/drivers/usb/gadget/f_audio.c
index ddeaa45..ec7ffcd 100644
--- a/drivers/usb/gadget/f_audio.c
+++ b/drivers/usb/gadget/f_audio.c
@@ -460,7 +460,7 @@ static int audio_set_endpoint_req(struct usb_function *f,
switch (ctrl->bRequest) {
case UAC_SET_CUR:
- value = 0;
+ value = len;
break;
case UAC_SET_MIN:
@@ -499,7 +499,7 @@ static int audio_get_endpoint_req(struct usb_function *f,
case UAC_GET_MIN:
case UAC_GET_MAX:
case UAC_GET_RES:
- value = 3;
+ value = len;
break;
case UAC_GET_MEM:
break;
--
1.7.6.396.ge0613
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