Another one popped to my eyes.
The following test in usb_gadget_ep_match_desc()
(in udc core.c)
/* "high bandwidth" works only at high speed */
if (!gadget_is_dualspeed(gadget) && usb_endpoint_maxp(desc) & (3<<11))
return 0;
If you look at the definition of usb_endpoint_maxp() however:
static inline int usb_endpoint_maxp(const struct usb_endpoint_descriptor *epd)
{
return __le16_to_cpu(epd->wMaxPacketSize) & USB_ENDPOINT_MAXP_MASK;
}
And we have:
#define USB_ENDPOINT_MAXP_MASK 0x07ff
I suspect the test should have been:
/* "high bandwidth" works only at high speed */
if (!gadget_is_dualspeed(gadget) && usb_endpoint_maxp_mult(desc) > 1)
return 0;
But I'm not completely certain as I'm not very familiar with USB3, so
I'll let you guys figure that out :-)
Cheers,
Ben.
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