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authorClemens Ladisch <clemens@ladisch.de>2005-05-09 09:20:31 +0200
committerJaroslav Kysela <perex@suse.cz>2005-05-29 10:06:28 +0200
commit3a2f08560d61e267aacddc63c26bf997d0d85e91 (patch)
tree5ce7ecbb0e6c81ea249e998fbf0fef06a1d9f82d /sound/usb
parent3714b5344e2da58d18f0b885663226826c22a1b3 (diff)
downloadop-kernel-dev-3a2f08560d61e267aacddc63c26bf997d0d85e91.zip
op-kernel-dev-3a2f08560d61e267aacddc63c26bf997d0d85e91.tar.gz
[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.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c
index da1fe0f..34d5f58 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
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