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usb: gadget: midi: make FS and HS available 

This function works only on FS or HS. If the gadget is HS capable only
HS descriptors are assigned. If we plug it to an 1.1 host it won't work
because we have only 2.0 descriptors. This patch changes the behavior to
provide both sets.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Sebastian Andrzej Siewior 2012-10-22 22:15:03 +02:00 committed by Felipe Balbi
parent d185039f79
commit 7f2a9268b4
1 changed files with 8 additions and 2 deletions
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10
drivers/usb/gadget/f_midi.c
View File

@ -882,18 +882,24 @@ f_midi_bind(struct usb_configuration *c, struct usb_function *f)
* both speeds
*/
/* copy descriptors, and track endpoint copies */
f->descriptors = usb_copy_descriptors(midi_function);
if (!f->descriptors)
goto fail_f_midi;
if (gadget_is_dualspeed(c->cdev->gadget)) {
bulk_in_desc.wMaxPacketSize = cpu_to_le16(512);
bulk_out_desc.wMaxPacketSize = cpu_to_le16(512);
f->hs_descriptors = usb_copy_descriptors(midi_function);
} else {
f->descriptors = usb_copy_descriptors(midi_function);
if (!f->hs_descriptors)
goto fail_f_midi;
}
kfree(midi_function);
return 0;
fail_f_midi:
kfree(midi_function);
usb_free_descriptors(f->hs_descriptors);
fail:
/* we might as well release our claims on endpoints */
if (midi->out_ep)