512 is the value used by wMaxPacketSize, as specified by the USB Spec. This makes sure this driver uses, by default, the most optimal value for IN and OUT endpoint requests. Signed-off-by: Felipe F. Tonello <eu@xxxxxxxxxxxxxxxxx> --- drivers/usb/gadget/function/f_midi.c | 2 +- drivers/usb/gadget/legacy/gmidi.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/gadget/function/f_midi.c b/drivers/usb/gadget/function/f_midi.c index a83d852b1da5..dd5cca6eae7c 100644 --- a/drivers/usb/gadget/function/f_midi.c +++ b/drivers/usb/gadget/function/f_midi.c @@ -1123,7 +1123,7 @@ static struct usb_function_instance *f_midi_alloc_inst(void) opts->func_inst.free_func_inst = f_midi_free_inst; opts->index = SNDRV_DEFAULT_IDX1; opts->id = SNDRV_DEFAULT_STR1; - opts->buflen = 256; + opts->buflen = 512; opts->qlen = 32; opts->in_ports = 1; opts->out_ports = 1; diff --git a/drivers/usb/gadget/legacy/gmidi.c b/drivers/usb/gadget/legacy/gmidi.c index fc2ac150f5ff..0bf39c3ccdb1 100644 --- a/drivers/usb/gadget/legacy/gmidi.c +++ b/drivers/usb/gadget/legacy/gmidi.c @@ -47,7 +47,7 @@ static char *id = SNDRV_DEFAULT_STR1; module_param(id, charp, S_IRUGO); MODULE_PARM_DESC(id, "ID string for the USB MIDI Gadget adapter."); -static unsigned int buflen = 256; +static unsigned int buflen = 512; module_param(buflen, uint, S_IRUGO); MODULE_PARM_DESC(buflen, "MIDI buffer length"); -- 2.9.2 -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
