diff options
| author | Clemens Ladisch <clemens@ladisch.de> | 2005-05-09 09:20:31 +0200 |
|---|---|---|
| committer | Jaroslav Kysela <perex@suse.cz> | 2005-05-29 10:06:28 +0200 |
| commit | 3a2f08560d61e267aacddc63c26bf997d0d85e91 (patch) | |
| tree | 5ce7ecbb0e6c81ea249e998fbf0fef06a1d9f82d /sound/usb | |
| parent | 3714b5344e2da58d18f0b885663226826c22a1b3 (diff) | |
| download | linux-3a2f08560d61e267aacddc63c26bf997d0d85e91.tar.bz2 | |
[ALSA] usb-audio - enable high speed (not) on Audigy 2 NX
USB generic driver
The SB Audigy 2 NX needs a special boot-up command before it works in
high speed mode.
However, we don't actually enable it yet because high speed
synchronization doesn't seem to work with this device.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Diffstat (limited to 'sound/usb')
| -rw-r--r-- | sound/usb/usbaudio.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c index da1fe0f0bca0..34d5f58985b6 100644 --- a/sound/usb/usbaudio.c +++ b/sound/usb/usbaudio.c @@ -2925,6 +2925,25 @@ static int snd_usb_extigy_boot_quirk(struct usb_device *dev, struct usb_interfac return 0; } +static int snd_usb_audigy2nx_boot_quirk(struct usb_device *dev) +{ +#if 0 + /* TODO: enable this when high speed synchronization actually works */ + u8 buf = 1; + + snd_usb_ctl_msg(dev, usb_rcvctrlpipe(dev, 0), 0x2a, + USB_DIR_IN | USB_TYPE_VENDOR | USB_RECIP_OTHER, + 0, 0, &buf, 1, 1000); + if (buf == 0) { + snd_usb_ctl_msg(dev, usb_sndctrlpipe(dev, 0), 0x29, + USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER, + 1, 2000, NULL, 0, 1000); + return -ENODEV; + } +#endif + return 0; +} + /* * audio-interface quirks @@ -3154,6 +3173,11 @@ static void *snd_usb_audio_probe(struct usb_device *dev, goto __err_val; config = dev->actconfig; } + /* SB Audigy 2 NX needs its own boot-up magic, too */ + if (id == USB_ID(0x041e, 0x3020)) { + if (snd_usb_audigy2nx_boot_quirk(dev) < 0) + goto __err_val; + } /* * found a config. now register to ALSA |