usb: gadget: f_midi: defaults buflen sizes to 512

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@felipetonello.com>
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>

diff --git a/drivers/usb/gadget/function/f_midi.c b/drivers/usb/gadget/function/f_midi.c
index 39018dea70356a3292e38f148ff1a0f07dd46d95..a7b50ac947f865e50b3df73a3545d1a689392ff1 100644 (file)
--- a/drivers/usb/gadget/function/f_midi.c
+++ b/drivers/usb/gadget/function/f_midi.c
@@ -1122,7 +1122,7 @@ 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 fc2ac150f5ffc4e15398a6d5a1a8d23f75baea53..0bf39c3ccdb1c22df1533e3dbb76231b4bb51461 100644 (file)
--- 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");