[#5261] USB audio gadget feedback

Submitted By: Mike Frysinger

Open Date

2009-06-16 09:06:22 Close Date

2010-01-19 01:19:41

Priority:

Medium Assignee:

Cliff Cai

Status:

Closed Fixed In Release:

N/A

Found In Release:

snaps Release:

Category:

N/A Board:

N/A

Processor:

BF548 Silicon Revision:

Is this bug repeatable?:

Yes Resolution:

Fixed

Uboot version or rev.:

Toolchain version or rev.:

trunk

App binary format:

N/A

Summary: USB audio gadget feedback

Details:

feedback from Sergey Lapin <slapin@ossfans.org>:

As first, it never frees ALSA devices.

When that is fixed, it never able to recover operation

on second load. Tested on MUSB on OMAP3530EVM.

It is very useful gadget, so I'd really like to see it fixed.

.wTotalLength in ac_header_descriptor descriptor should contain sum of sizes

of interface and unit descriptors, per Audio Device Class specification

1.0 (also worth mentioning in documentation, because spec. 2.0 exists

too). In this patch this field contains only USB_DT_AC_HEADER_LENGH

which is totally wrong. This all magically works in Linux, though,

but making Linux-only solution here is wrong, IMHO.

Just my $0.05.

Follow-ups

--- Mike Frysinger 2009-09-16 19:20:00

while we should get this fixed, the driver has been merged into mainline ...

--- Cliff Cai 2009-11-30 04:27:13

all the problems mentioned above are fixed.

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