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ALSA: usb-audio: add Edirol SD-90 PCM support

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Add support for the 24-bit audio I/Os of the Edirol SD-90 interface.

Reported-any-tested-by: Jim Grusendorf <alsa-user@grusendorf.ca>
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Clemens Ladisch
2011-01-10 16:30:54 +01:00
committed by Takashi Iwai
parent 2a1803a729
commit 061b869eca
2 changed files with 6 additions and 3 deletions
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5
sound/usb/format.c
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@@ -76,7 +76,10 @@ static u64 parse_audio_format_i_type(struct snd_usb_audio *chip,
format = 1 << UAC_FORMAT_TYPE_I_PCM;
}
if (format & (1 << UAC_FORMAT_TYPE_I_PCM)) {
if (sample_width > sample_bytes * 8) {
if (chip->usb_id == USB_ID(0x0582, 0x0016) /* Edirol SD-90 */ &&
sample_width == 24 && sample_bytes == 2)
sample_bytes = 3;
else if (sample_width > sample_bytes * 8) {
snd_printk(KERN_INFO "%d:%u:%d : sample bitwidth %d in over sample bytes %d\n",
chip->dev->devnum, fp->iface, fp->altsetting,
sample_width, sample_bytes);