Some driver fixes for libpayload:

[coreboot.git] / payloads / libpayload / drivers / usb / usb.c

diff --git a/payloads/libpayload/drivers/usb/usb.c b/payloads/libpayload/drivers/usb/usb.c
index 3820180cbcc1636ca22464adb29043e2709be98f..d536d31d86770f7a263bc8a9de4f15d32fb5d897 100644 (file)
--- a/payloads/libpayload/drivers/usb/usb.c
+++ b/payloads/libpayload/drivers/usb/usb.c
@@ -281,7 +281,16 @@ set_address (hci_t *controller, int lowspeed)
                int num = cd->bNumInterfaces;
                interface_descriptor_t *current = interface;
                printf ("device has %x interfaces\n", num);
-               num = (num > 5) ? 5 : num;
+               if (num>1)
+                       printf ("NOTICE: This driver defaults to using the first interface.\n"
+                               "This might be the wrong choice and lead to limited functionality\n"
+                               "of the device. Please report such a case to coreboot@coreboot.org\n"
+                               "as you might be the first.\n");
+               /* we limit to the first interface, as there was no need to
+                  implement something else for the time being. If you need
+                  it, see the SetInterface and GetInterface functions in
+                  the USB specification, and adapt appropriately. */
+               num = (num > 1) ? 1 : num;
                for (i = 0; i < num; i++) {
                        int j;
                        printf (" #%x has %x endpoints, interface %x:%x, protocol %x\n", current->bInterfaceNumber, current->bNumEndpoints, current->bInterfaceClass, current->bInterfaceSubClass, current->bInterfaceProtocol);