usb: gadget: f_uac2: fix bFirstInterface in composite gadget

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[ Upstream commit 8813a59ed8 ]

If there are multiple functions associated with a configuration, then
the UAC2 interfaces may not start at zero.  Set the correct first
interface number in the association descriptor so that the audio
interfaces are enumerated correctly in this case.

Reviewed-by: Krzysztof Opasiak <k.opasiak@samsung.com>
Signed-off-by: John Keeping <john@metanate.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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John Keeping 2018-01-12 18:43:32 +00:00 • committed by Greg Kroah-Hartman

parent 0ff6b2cac9

commit 0cc948e8dd

1 changed files with 2 additions and 0 deletions

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drivers/usb/gadget/function/f_uac2.c

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