[alsa-devel] [PATCH] usb-audio: ignore-quirk for HP Wireless Audio

[Takashi Iwai]

At Sat, 15 Dec 2012 05:30:33 +0100,
Eldad Zack wrote:
> 
> As Joe Cooper <swelljoe at gmail.com> reported, "On most HP Envy laptops
> the snd-usb-audio module causes the system to become unresponsive and
> Gnome Shell 3 to crash.".
> See also:
>  http://mailman.alsa-project.org/pipermail/alsa-devel/2012-December/057729.html
> 
> Add a quirk to ignore this device (for now) to solve the instability
> issue and allow other USB audio devices to be used.
> 
> Reported-by: Joe Cooper <swelljoe at gmail.com>
> Tested-by: Isaac Smith <hunternet93 at gmail.com>
> Signed-off-by: Eldad Zack <eldad at fogrefinery.com>

Thanks, applied now.


Takashi

> ---
>  sound/usb/quirks-table.h |   36 ++++++++++++++++++++++++++++++++++++
>  1 files changed, 36 insertions(+), 0 deletions(-)
> 
> Applies against mainline 3.7.0 and sound-3.8.
> 
> diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h
> index 49f9af9..e3c59f0 100644
> --- a/sound/usb/quirks-table.h
> +++ b/sound/usb/quirks-table.h
> @@ -99,6 +99,42 @@
>  },
>  
>  /*
> + * HP Wireless Audio
> + * When not ignored, causes instability issues for some users, forcing them to
> + * blacklist the entire module.
> + */
> +{
> +	USB_DEVICE(0x0424, 0xb832),
> +	.driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) {
> +		.vendor_name = "Standard Microsystems Corp.",
> +		.product_name = "HP Wireless Audio",
> +		.ifnum = QUIRK_ANY_INTERFACE,
> +		.type = QUIRK_COMPOSITE,
> +		.data = (const struct snd_usb_audio_quirk[]) {
> +			/* Mixer */
> +			{
> +				.ifnum = 0,
> +				.type = QUIRK_IGNORE_INTERFACE,
> +			},
> +			/* Playback */
> +			{
> +				.ifnum = 1,
> +				.type = QUIRK_IGNORE_INTERFACE,
> +			},
> +			/* Capture */
> +			{
> +				.ifnum = 2,
> +				.type = QUIRK_IGNORE_INTERFACE,
> +			},
> +			/* HID Device, .ifnum = 3 */
> +			{
> +				.ifnum = -1,
> +			}
> +		}
> +	}
> +},
> +
> +/*
>   * Logitech QuickCam: bDeviceClass is vendor-specific, so generic interface
>   * class matches do not take effect without an explicit ID match.
>   */
> -- 
> 1.7.8.6
>