Messages in this thread Patch in this message | | | From | "Felipe F. Tonello" <> | Subject | [PATCH v4 5/7] usb: gadget: f_midi: set altsettings only for MIDIStreaming interface | Date | Mon, 26 Oct 2015 16:55:07 +0000 |
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This avoids duplication of USB requests for OUT endpoint and re-enabling endpoints.
Signed-off-by: Felipe F. Tonello <eu@felipetonello.com> --- drivers/usb/gadget/function/f_midi.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/usb/gadget/function/f_midi.c b/drivers/usb/gadget/function/f_midi.c index 0e9cdeb..a617df3 100644 --- a/drivers/usb/gadget/function/f_midi.c +++ b/drivers/usb/gadget/function/f_midi.c @@ -323,6 +323,10 @@ static int f_midi_set_alt(struct usb_function *f, unsigned intf, unsigned alt) unsigned i; int err; + /* We don't care if it is not MIDIStreaming interface */ + if (intf != ms_interface_desc.bInterfaceNumber) + return 0; + err = f_midi_start_ep(midi, f, midi->in_ep); if (err) return err; -- 2.1.4
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