Re: [PATCH v2] usb: gadget: f_uac1: add interface association descriptor

From: AngeloGioacchino Del Regno
Date: Wed Jun 29 2022 - 04:07:42 EST


Il 29/06/22 04:13, Chunfeng Yun ha scritto:
From: xin lin <xin.lin@xxxxxxxxxxxx>

When we want to use a composite device that supports UVC, UAC1 and
ADB at the same time, encounter that UAC1 can't work when connected
to windows 10 system.
from the online documents of microsoft, "overview of enumeration of
interface collections on usb composite devices", it recommends that
vendors use IADs (interface association descriptor) to define
interface collections.
After addding IAD, we can fix the issue.

Signed-off-by: xin lin <xin.lin@xxxxxxxxxxxx>
Signed-off-by: Chunfeng Yun <chunfeng.yun@xxxxxxxxxxxx>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx>