Re: [PATCH] usb-audio: Rate limit usb_set_interface error reporting

[Chris Down <chris@xxxxxxxxxxxxxx>]

Takashi Iwai writes:
> Hrm, is "usb 3-7.1.4" really the USB audio device?  The previous
> errors like "Unable to submit urb #2..." are certainly for USB audio,
> and those are with "usb 3-7.4".

There are two USB audio devices -- 3-7.1.4 is input, 3-7.4 is output.

    % dmesg --notime | grep -e 'usb 3-7.4' -e 'usb 3-7.1.4' | grep Product: | sort | uniq
    usb 3-7.1.4: Product: USB2.0 Microphone
    usb 3-7.4: Product: USB Audio Device

Thanks,

Chris