diff -urN alsa-driver-1.0.12rc3/alsa-kernel/usb/usbaudio.c alsa-driver-1.0.12rc3_patch/alsa-kernel/usb/usbaudio.c
--- alsa-driver-1.0.12rc3/alsa-kernel/usb/usbaudio.c	2006-08-14 12:55:28.000000000 +0200
+++ alsa-driver-1.0.12rc3_patch/alsa-kernel/usb/usbaudio.c	2006-08-20 12:46:30.000000000 +0200
@@ -2306,7 +2306,15 @@
 		break;
 	case USB_ID(0x0763, 0x2003): /* M-Audio Audiophile USB */
 		return 1;
-	}
+		
+	case USB_ID(0x0763, 0x2012): /* M-Audio Fast Track Pro */
+		/* it depends on altsetting wether the device is big-endian or not */
+		if(fp->altsetting==2 || fp->altsetting==3 || 
+			 fp->altsetting==5 || fp->altsetting==6)
+			return 1;
+		break;
+		
+	}	
 	return 0;
 }
 
@@ -2551,6 +2559,8 @@
 
 static int audiophile_skip_setting_quirk(struct snd_usb_audio *chip,
 					 int iface, int altno);
+static int fasttrackpro_skip_setting_quirk(struct snd_usb_audio *chip,
+					 int iface, int altno);
 static int parse_audio_endpoints(struct snd_usb_audio *chip, int iface_no)
 {
 	struct usb_device *dev;
@@ -2592,6 +2602,11 @@
 		    audiophile_skip_setting_quirk(chip, iface_no, altno))
 			continue;
 
+		/* M-Audio Fast Track Pro: skip alsets incompatible with device_setup */
+		if (chip->usb_id == USB_ID(0x0763, 0x2012) && 
+		    fasttrackpro_skip_setting_quirk(chip, iface_no, altno))
+			continue;
+
 		/* get audio formats */
 		fmt = snd_usb_find_csint_desc(alts->extra, alts->extralen, NULL, AS_GENERAL);
 		if (!fmt) {
@@ -3118,6 +3133,28 @@
 	return snd_usb_cm106_write_int_reg(dev, 2, 0x8004);
 }
 
+static int snd_usb_fasttrackpro_boot_quirk(struct usb_device *dev, int ifnum)
+{
+	int err;
+	
+	if(dev->actconfig->desc.bConfigurationValue==1) {
+		if(ifnum==0) {
+			snd_printk(KERN_INFO "Switching to config #2\n");
+			/* This function has to be available by the usb core module. 
+			   if it is not avialable the boot quirk has to be left out and the
+			   configuration has to be set by udev or hotplug rules */
+			err=usb_driver_set_configuration(dev,2);
+			if(err < 0) {
+				snd_printdd("error usb_driver_set_configuration: %d\n", err);
+				return -ENODEV;
+			}
+		}
+	} else {
+		snd_printk(KERN_INFO "Fast Track Pro config OK\n");
+	}
+	
+	return 0;
+}
 
 /*
  * Setup quirks
@@ -3159,6 +3196,39 @@
 	return 0; /* keep this altsetting */
 }
 
+static int fasttrackpro_skip_setting_quirk(struct snd_usb_audio *chip,
+					 int iface, int altno)
+{
+	
+	/* possible configuration where both inputs and only one output is
+	   used is not supported by the current setup */
+	
+	if (device_setup[chip->index] & (AUDIOPHILE_SET | AUDIOPHILE_SET_24B)) {
+		if(device_setup[chip->index] & AUDIOPHILE_SET_96K){
+			if((altno != 3) && (altno != 6))
+				return 1;
+		}else if(device_setup[chip->index] & AUDIOPHILE_SET_DI){
+			if(iface == 4) 
+				return 1; /* no analog input */
+			
+			if((altno != 2) && (altno != 5))
+				return 1; /* enable only altsets 2 and 5 */
+		}else{
+			if(iface == 5) 
+				return 1; /* disable digialt input */
+			
+			if((altno != 2) && (altno != 5))
+				return 1; /* enalbe only altsets 2 and 5 */
+		}
+	}else{
+		/* keep only 16-Bit mode */
+		if(altno !=1) 
+			return 1;
+	}
+	
+	return 0; /* keep this altsetting */
+}
+
 /*
  * audio-interface quirks
  *
@@ -3394,6 +3464,12 @@
 		if (snd_usb_cm106_boot_quirk(dev) < 0)
 			goto __err_val;
 	}
+	
+	/* M-Audio Fast Track Pro */
+	if (id == USB_ID(0x0763, 0x2012)) { 
+		if (snd_usb_fasttrackpro_boot_quirk(dev, ifnum) < 0)
+			goto __err_val;
+	}
 
 	/*
 	 * found a config.  now register to ALSA