At Mon, 3 Jan 2011 02:41:58 +0100, Karsten Wiese wrote:
The US-122L always reads 9 bytes per urb unless they are set to 0xFD.
Signed-off-by: Karsten Wiese fzu@wemgehoertderstaat.de Cc: stable@kernel.org
Applied now. Thanks.
Takashi
sound/usb/midi.c | 11 +++++++++-- 1 files changed, 9 insertions(+), 2 deletions(-)
diff --git a/sound/usb/midi.c b/sound/usb/midi.c index 25bce7e..b1f9ec9 100644 --- a/sound/usb/midi.c +++ b/sound/usb/midi.c @@ -850,8 +850,8 @@ static void snd_usbmidi_us122l_output(struct snd_usb_midi_out_endpoint *ep, return; }
- memset(urb->transfer_buffer + count, 0xFD, 9 - count);
- urb->transfer_buffer_length = count;
- memset(urb->transfer_buffer + count, 0xFD, ep->max_transfer - count);
- urb->transfer_buffer_length = ep->max_transfer;
}
static struct usb_protocol_ops snd_usbmidi_122l_ops = { @@ -1295,6 +1295,13 @@ static int snd_usbmidi_out_endpoint_create(struct snd_usb_midi* umidi, case USB_ID(0x1a86, 0x752d): /* QinHeng CH345 "USB2.0-MIDI" */ ep->max_transfer = 4; break;
/** Some devices only work with 9 bytes packet size:*/- case USB_ID(0x0644, 0x800E): /* Tascam US-122L */
- case USB_ID(0x0644, 0x800F): /* Tascam US-144 */
ep->max_transfer = 9;break;-- 1.7.2.3
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