[alsa-devel] [PATCH v2] USB-Audio: Blacklist iec958 for some USB devices

[Takashi Iwai]

At Fri,  9 Mar 2012 11:46:06 +0100,
David Henningsson wrote:
> 
> Some common USB devices are analog only, so prevent the digital
> devices from being opened. This simplifies probing the device
> in PulseAudio.
> 
> I have a "Logitech USB Headset" myself, the "Logitech Web Camera"
> was reported by Raymond Yau, and the "Blue Snowball" was reported by
> Andy Whitcroft.
> 
> Cc: Andy Whitcroft <andy.whitcroft at canonical.com>
> Cc: Raymond Yau <superquad.vortex2 at gmail.com>
> BugLink: https://bugs.launchpad.net/bugs/940145
> Signed-off-by: David Henningsson <david.henningsson at canonical.com>

Thanks, applied now.


Takashi

> ---
>  src/conf/cards/USB-Audio.conf |    5 +++++
>  1 files changed, 5 insertions(+), 0 deletions(-)
> 
> diff --git a/src/conf/cards/USB-Audio.conf b/src/conf/cards/USB-Audio.conf
> index 0726c34..d7c121e 100644
> --- a/src/conf/cards/USB-Audio.conf
> +++ b/src/conf/cards/USB-Audio.conf
> @@ -36,6 +36,11 @@ USB-Audio.pcm.surround40_type {
>  # number for the iec958 device can be changed here.
>  USB-Audio.pcm.iec958_device {
>  	# "NoiseBlaster 3000" 42
> +
> +	# The below don't have digital in/out, so prevent them from being opened.
> +	"Logitech USB Headset" 999
> +	"Logitech Web Camera" 999
> +	"Blue Snowball" 999
>  }
>  
>  
> -- 
> 1.7.9
>