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[ALSA] usb-audio - Fix audiophile-USB quirk for little-endian

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Audiophile-usb fix (corrects little-endianness in 16bit
modes, resets interfaces at device initialization, and updates the
documentation).

Signed-off-by: Thibault Le Meur <Thibault.LeMeur@supelec.fr>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>
This commit is contained in:
Thibault Le Meur
2007-07-12 11:26:35 +02:00
committed by Jaroslav Kysela
parent be38114a49
commit f8c78b82b9
2 changed files with 157 additions and 78 deletions
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9
sound/usb/usbaudio.c
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@@ -2350,7 +2350,9 @@ static int is_big_endian_format(struct snd_usb_audio *chip, struct audioformat *
return 1;
break;
case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */
return 1;
if (device_setup[chip->index] == 0x00 ||
fp->altsetting==1 || fp->altsetting==2 || fp->altsetting==3)
return 1;
}
return 0;
}
@@ -3251,6 +3253,11 @@ static int snd_usb_cm106_boot_quirk(struct usb_device *dev)
static int audiophile_skip_setting_quirk(struct snd_usb_audio *chip,
int iface, int altno)
{
/* Reset ALL ifaces to 0 altsetting.
* Call it for every possible altsetting of every interface.
*/
usb_set_interface(chip->dev, iface, 0);
if (device_setup[chip->index] & AUDIOPHILE_SET) {
if ((device_setup[chip->index] & AUDIOPHILE_SET_DTS)
&& altno != 6)