Commit 97c889a7 authored Sep 26, 2008 by Eran Tromer Committed by Jaroslav Kysela Oct 10, 2008

ALSA: usb-audio: add support for E-Mu Tracker Pre



Add support for the E-Mu "Tracker Pre" USB sound card, following
the example of the (very similar) E-Mu 0202 and E-Mu 0404 USB.

As with the 0202 and 0404 USB, functionality is very limited:
just a couple of sample rates, no volume/mute control, etc.

Signed-off-by: Eran Tromer <eran@tromer.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

parent dc9c8e21

sound/usb/usbaudio.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -484,7 +484,7 @@ static int retire_playback_sync_urb_hs(struct snd_usb_substream *subs,
		}

		/*
		* process after E-Mu 0202/0404 high speed playback sync complete
		* process after E-Mu 0202/0404/Tracker Pre high speed playback sync complete
		*
		* These devices return the number of samples per packet instead of the number
		* of samples per microframe.
		@@ -2264,6 +2264,7 @@ static void init_substream(struct snd_usb_stream *as, int stream, struct audiofo
		switch (as->chip->usb_id) {
		case USB_ID(0x041e, 0x3f02): /* E-Mu 0202 USB */
		case USB_ID(0x041e, 0x3f04): /* E-Mu 0404 USB */
		case USB_ID(0x041e, 0x3f0a): /* E-Mu Tracker Pre */
		subs->ops.retire_sync = retire_playback_sync_urb_hs_emu;
		break;
		}

sound/usb/usbquirks.h

+7 −0

Original line number	Diff line number	Diff line
		@@ -62,6 +62,13 @@
		.idProduct = 0x3f04,
		.bInterfaceClass = USB_CLASS_AUDIO,
		},
		{
		/* E-Mu Tracker Pre */
		.match_flags = USB_DEVICE_ID_MATCH_DEVICE,
		.idVendor = 0x041e,
		.idProduct = 0x3f0a,
		.bInterfaceClass = USB_CLASS_AUDIO,
		},

		/*
		* Logitech QuickCam: bDeviceClass is vendor-specific, so generic interface