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usb: gadget: audio: queue wLength-sized requests

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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@ti.com>
This commit is contained in:
Felipe Balbi 2011-08-29 11:54:08 +03:00
parent ef7f584ce7
commit 7c5881d162
1 changed files with 2 additions and 2 deletions
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4
drivers/usb/gadget/f_audio.c
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@ -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;