|
@@ -965,7 +965,11 @@ static int snd_usbmidi_out_endpoint_create(struct snd_usb_midi* umidi,
|
|
|
}
|
|
|
/* we never use interrupt output pipes */
|
|
|
pipe = usb_sndbulkpipe(umidi->chip->dev, ep_info->out_ep);
|
|
|
- ep->max_transfer = usb_maxpacket(umidi->chip->dev, pipe, 1);
|
|
|
+ if (umidi->chip->usb_id == USB_ID(0x0a92, 0x1020)) /* ESI M4U */
|
|
|
+ /* FIXME: we need more URBs to get reasonable bandwidth here: */
|
|
|
+ ep->max_transfer = 4;
|
|
|
+ else
|
|
|
+ ep->max_transfer = usb_maxpacket(umidi->chip->dev, pipe, 1);
|
|
|
buffer = usb_buffer_alloc(umidi->chip->dev, ep->max_transfer,
|
|
|
GFP_KERNEL, &ep->urb->transfer_dma);
|
|
|
if (!buffer) {
|