[alsa-devel] [PATCH] usb-audio: Duplex support for Digidesign Mbox 1 and clock source selector

Hi,

Please review this patch and my previous one.

This patch provides duplex support for the Digidesign Mbox 1 sound card. This also depends on my previous patch for enabling the clock source selector because the mixer is enabled in this patch. I reduced the supported sampling rates to just 48kHz because the device works better in this mode with the SPDIF external sync.

Damien