I read many forums about this problem but i can't figure out yet. I saw about a patch for 2 files: usbaudio.c and usbquirks.h (both i have them in: /usr/src/Alsa Drivers/alsa-driver-1.0.9/sound/usb) . This is the patch:
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The MIDI interface is class compliant, and this is what's shown by Jack.
The audio interfaces are marked as vendor specific, so the driver needs
to be changed to support them.
Please try recompiling your kernel with the patch below.
Some M-Audio devices use big-endian samples, so beware of speaker-
killing noise.
It's possible that playback synchronization doesn't work completely.
Please check what happens when you try to play and record with different
sample rates.
HTH
Clemens
--- linux/sound/usb/usbaudio.c
+++ linux/sound/usb/usbaudio.c
@@ -2235,6 +2235,10 @@ static void init_substream(struct snd_us
case USB_ID(0x041e, 0x3f0a): /* E-Mu Tracker Pre */
subs->ops.retire_sync = retire_playback_sync_urb_hs_emu;
break;
+ case USB_ID(0x0763, 0x2080): /* M-Audio Fast Track Ultra */
+ subs->ops.prepare_sync = prepare_playback_sync_urb;
+ subs->ops.retire_sync = retire_playback_sync_urb;
+ break;
}
}
snd_pcm_set_ops(as->pcm, stream,
@@ -2786,6 +2790,7 @@ static int parse_audio_endpoints(struct
break;
case USB_ID(0x041e, 0x3020): /* Creative SB Audigy 2 NX */
case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */
+ case USB_ID(0x0763, 0x2080): /* M-Audio Fast Track Ultra */
/* doesn't set the sample rate attribute, but supports it */
fp->attributes |= EP_CS_ATTR_SAMPLE_RATE;
break;
--- linux/sound/usb/usbquirks.h
+++ linux/sound/usb/usbquirks.h
@@ -1864,6 +1864,33 @@
}
}
},
+{
+ USB_DEVICE_VENDOR_SPEC(0x0763, 0x2080),
+ .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
+ /* .vendor_name = "M-Audio", */
+ /* .product_name = "Fast Track Ultra", */
+ .ifnum = QUIRK_ANY_INTERFACE,
+ .type = QUIRK_COMPOSITE,
+ .data = & (const struct snd_usb_audio_quirk[]) {
+ {
+ .ifnum = 0,
+ .type = QUIRK_IGNORE_INTERFACE
+ },
+ {
+ .ifnum = 1,
+ .type = QUIRK_AUDIO_STANDARD_INTERFACE
+ },
+ {
+ .ifnum = 2,
+ .type = QUIRK_AUDIO_STANDARD_INTERFACE
+ },
+ /* interface 3 (MIDI) is standard compliant */
+ {
+ .ifnum = -1
+ }
+ }
+ }
+},
/* Casio devices */
{
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patching file usbaudio.c
Hunk #1 FAILED at 2235.
Hunk #2 FAILED at 2786.
2 out of 2 hunks FAILED -- saving rejects to file usbaudio.c.rej
patching file usbquirks.h
Hunk #1 succeeded at 1899 with fuzz 2 (offset 35 lines).
For example i tried this : viewtopic.php?f=6&t=1581&start=15#p9895 but i got errors too about kernel headers (that i think)
If anyone might help me would be great, i would like to see my Fast Track Ultra working in my Linux Mint.
Thank you so much !