ALSA: usb-audio: Add support for Akai MPC Element USB MIDI controller (e9f49369) · Commits · 戴 / test

The Akai MPC Element incorrectly reports its bInterfaceClass as 255, but otherwise implements the USB MIDI spec correctly. This adds a quirks-table.h entry which allows the device to be recognized as a standard USB MIDI device. Signed-off-by:

Paul Bonser <misterpib@gmail.com> Signed-off-by:

Takashi Iwai <tiwai@suse.de>

sound/usb/quirks-table.h

+22 −0

Original line number	Diff line number	Diff line
		@@ -2486,6 +2486,28 @@ YAMAHA_DEVICE(0x7010, "UB99"),
		}
		},

		{
		/* Akai MPC Element */
		USB_DEVICE(0x09e8, 0x0021),
		.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
		.ifnum = QUIRK_ANY_INTERFACE,
		.type = QUIRK_COMPOSITE,
		.data = & (const struct snd_usb_audio_quirk[]) {
		{
		.ifnum = 0,
		.type = QUIRK_IGNORE_INTERFACE
		},
		{
		.ifnum = 1,
		.type = QUIRK_MIDI_STANDARD_INTERFACE
		},
		{
		.ifnum = -1
		}
		}
		}
		},

		/* TerraTec devices */
		{
		USB_DEVICE_VENDOR_SPEC(0x0ccd, 0x0012),

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