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authorFelipe F. Tonello <eu@felipetonello.com>2016-08-08 21:30:08 +0100
committerFelipe Balbi <felipe.balbi@linux.intel.com>2016-08-25 12:13:15 +0300
commit7ea9fde7605c3d224ba28cd17ffd8ac408453a96 (patch)
treeee7ae44c3ce1dd00301a39cac96f536428e508a5 /drivers/usb/gadget
parent4a655f152e7932e43356b683958200094b368d5a (diff)
downloadblackbird-op-linux-7ea9fde7605c3d224ba28cd17ffd8ac408453a96.tar.gz
blackbird-op-linux-7ea9fde7605c3d224ba28cd17ffd8ac408453a96.zip
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>
Diffstat (limited to 'drivers/usb/gadget')
-rw-r--r--drivers/usb/gadget/function/f_midi.c2
-rw-r--r--drivers/usb/gadget/legacy/gmidi.c2
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 39018dea7035..a7b50ac947f8 100644
--- 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 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");
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