From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paul Bonser Subject: [PATCH v2] ALSA: usb-audio: Add support for Akai MPC Element USB MIDI controller Date: Wed, 07 Jan 2015 23:34:16 -0600 Message-ID: <54AE16D8.6080302@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: Sender: linux-kernel-owner@vger.kernel.org To: Jaroslav Kysela , Takashi Iwai Cc: alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org List-Id: alsa-devel@alsa-project.org From: Paul Bonser 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 --- diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h index 8590a32..e869b6c 100644 --- a/sound/usb/quirks-table.h +++ b/sound/usb/quirks-table.h @@ -2516,6 +2516,28 @@ 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),