On Mon, Aug 22, 2011 at 1:40 PM, Kristian Amlie kristian@amlie.name wrote:
On 08/22/11 12:54, Daniel Mack wrote:
On Mon, Aug 22, 2011 at 12:52 PM, Kristian Amlie kristian@amlie.name wrote:
I have just received a new MIDI instrument (Starr Labs Z7S) which is not recognized by the kernel, and I'd like to add support for it. I'm hoping that it uses a standard MIDI interface and it's just a matter of adding the correct entry in the table of devices.
I have tried to add an entry to sound/usb/usbquirks.h (sound/usb/quirks-table.h in later kernels), but so far I haven't succeeded. Is there any documentation for how to do this, and which options to use? Google hasn't really turned up anything...
The USB descriptors should give us a hint. Can you send your "lsusb -v" output, please?
Sure! Here is the lsusb -v output for the device:
It doesn't seem to be using a standard MIDI interface, but there's a chance that it accepts raw MIDI byte streams. Can you check the patch below?
Daniel
diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h index a42e3ef..0f8aa11 100644 --- a/sound/usb/quirks-table.h +++ b/sound/usb/quirks-table.h @@ -39,6 +39,16 @@ .idProduct = prod, \ .bInterfaceClass = USB_CLASS_VENDOR_SPEC
+/* Starr Labs MIDI USB device */ +{ + USB_DEVICE(0x0403, 0xb8d8), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + /* .vendor_name = "STARR LABS", */ + /* .product_name = "Starr Labs MIDI USB device", */ + .ifnum = 0, + .type = QUIRK_MIDI_RAW_BYTES + } +}, /* Creative/Toshiba Multimedia Center SB-0500 */ { USB_DEVICE(0x041e, 0x3048),