Hello,
Thanks for your advice!
Clemens Ladisch wrote:
For only one interface, you don't need to use QUIRK_COMPOSITE; see the entry for the UM-880.
I've replaced the QUIRK_COMPOSITE by a QUIRK_MIDI_FIXED_ENDPOINT, the module also probes (and fails) the USB interface 4 (I don't know what this interface is for on this device) which results in the printing of an error in the kernel log. How can I inform the snd-usb-audio driver that the USB interface 4 should be left alone?
Please find an updated (and shrinked!) patch below.
Signed-off-by: Sebastien Alaiwan sebastien.alaiwan@gmail.com --- diff --git a/sound/usb/usbaudio.c b/sound/usb/usbaudio.c index 9edef46..aaf8f7c 100644 --- a/sound/usb/usbaudio.c +++ b/sound/usb/usbaudio.c @@ -3327,6 +3327,31 @@ static int snd_usb_cm6206_boot_quirk(struct usb_device *dev) }
/* + * This call will put the synth in "USB send" mode, i.e it will send MIDI + * messages through USB (this is disabled at startup). The synth will aknowledge + * by sending a sysex on endpoint 0x85 and by displaying a USB sign on its LCD. + * Values here are chosen based on sniffing USB traffic under Windows. + */ +static int snd_usb_accessmusic_boot_quirk(struct usb_device *dev) +{ + int err, actual_length; + + /* "midi send" enable */ + static const u8 seq[] = { 0x4e, 0x73, 0x52, 0x01 }; + + void *buf = kmemdup(seq, ARRAY_SIZE(seq), GFP_KERNEL); + if (!buf) + return -ENOMEM; + err = usb_interrupt_msg(dev, usb_sndintpipe(dev, 0x05), buf, + ARRAY_SIZE(seq), &actual_length, 1000); + kfree(buf); + if (err < 0) + return err; + + return 0; +} + +/* * Setup quirks */ #define AUDIOPHILE_SET 0x01 /* if set, parse device_setup */ @@ -3624,6 +3649,12 @@ static void *snd_usb_audio_probe(struct usb_device *dev, goto __err_val; }
+ /* Access Music VirusTI Desktop */ + if (id == USB_ID(0x133e, 0x0815)) { + if (snd_usb_accessmusic_boot_quirk(dev) < 0) + goto __err_val; + } + /* * found a config. now register to ALSA */ diff --git a/sound/usb/usbmidi.c b/sound/usb/usbmidi.c index 6e89b83..8f5bc1e 100644 --- a/sound/usb/usbmidi.c +++ b/sound/usb/usbmidi.c @@ -1407,6 +1407,12 @@ static struct port_info { EXTERNAL_PORT(0x086a, 0x0001, 8, "%s Broadcast"), EXTERNAL_PORT(0x086a, 0x0002, 8, "%s Broadcast"), EXTERNAL_PORT(0x086a, 0x0003, 4, "%s Broadcast"), + /* Access Music Virus TI */ + EXTERNAL_PORT(0x133e, 0x0815, 0, "%s MIDI"), + PORT_INFO(0x133e, 0x0815, 1, "%s Synth", 0, + SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | + SNDRV_SEQ_PORT_TYPE_HARDWARE | + SNDRV_SEQ_PORT_TYPE_SYNTHESIZER), };
static struct port_info *find_port_info(struct snd_usb_midi* umidi, int number) diff --git a/sound/usb/usbquirks.h b/sound/usb/usbquirks.h index a892bda..853788d 100644 --- a/sound/usb/usbquirks.h +++ b/sound/usb/usbquirks.h @@ -2073,6 +2073,20 @@ YAMAHA_DEVICE(0x7010, "UB99"), } },
+/* Access Music devices */ +{ + /* VirusTI Desktop */ + USB_DEVICE_VENDOR_SPEC(0x133e, 0x0815), + .driver_info = (unsigned long) &(const struct snd_usb_audio_quirk) { + .ifnum = 3, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = &(const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0003, + .in_cables = 0x0003 + } + } +}, + /* */ { /* aka. Serato Scratch Live DJ Box */