From f8c78b82b9e47d933629e7060e4a83a277b15ffe Mon Sep 17 00:00:00 2001 From: Thibault Le Meur Date: Thu, 12 Jul 2007 11:26:35 +0200 Subject: [ALSA] usb-audio - Fix audiophile-USB quirk for little-endian Audiophile-usb fix (corrects little-endianness in 16bit modes, resets interfaces at device initialization, and updates the documentation). Signed-off-by: Thibault Le Meur Signed-off-by: Takashi Iwai Signed-off-by: Jaroslav Kysela --- sound/usb/usbaudio.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'sound/usb') diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c index 8ebc1adb5ed..834b0aff5ec 100644 --- a/sound/usb/usbaudio.c +++ b/sound/usb/usbaudio.c @@ -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) -- cgit v1.2.3