diff options
Diffstat (limited to 'drivers/usb/gadget/epautoconf.c')
| -rw-r--r-- | drivers/usb/gadget/epautoconf.c | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c index 0df4b2a103..6ddbe83deb 100644 --- a/drivers/usb/gadget/epautoconf.c +++ b/drivers/usb/gadget/epautoconf.c @@ -220,7 +220,7 @@ struct usb_ep *usb_ep_autoconfig( struct usb_endpoint_descriptor *desc ) { - struct usb_ep *ep; + struct usb_ep *ep = NULL; u8 type; type = desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK; @@ -261,6 +261,28 @@ struct usb_ep *usb_ep_autoconfig( ep = find_ep(gadget, "ep1-bulk"); if (ep && ep_matches(gadget, ep, desc)) return ep; + } else if (gadget_is_dwc3(gadget)) { + const char *name = NULL; + /* + * First try standard, common configuration: ep1in-bulk, + * ep2out-bulk, ep3in-int to match other udc drivers to avoid + * confusion in already deployed software (endpoint numbers + * hardcoded in userspace software/drivers) + */ + if ((desc->bEndpointAddress & USB_DIR_IN) && + type == USB_ENDPOINT_XFER_BULK) + name = "ep1in"; + else if ((desc->bEndpointAddress & USB_DIR_IN) == 0 && + type == USB_ENDPOINT_XFER_BULK) + name = "ep2out"; + else if ((desc->bEndpointAddress & USB_DIR_IN) && + type == USB_ENDPOINT_XFER_INT) + name = "ep3in"; + + if (name) + ep = find_ep(gadget, name); + if (ep && ep_matches(gadget, ep, desc)) + return ep; } /* Second, look at endpoints until an unclaimed one looks usable */ |
