From: Vincent Palatin <vpala...@chromium.org>
If the USB keyboard is not answering properly the first request on its
interrupt endpoint, just skip it and try the next one.
This workarounds an issue with a wireless mouse dongle which presents
itself both as a keyboard and a mouse but has a non-functional keyboard
interface.
Signed-off-by: Vincent Palatin <vpala...@chromium.org>
(cherry picked from commit 012bbf0ce0301be2482857e3f03b481dd15c2340)
Rebased to upstream/master:
Signed-off-by: Simon Glass <s...@chromium.org>
Reviewed-by: Stefan Reinauer <reina...@chromium.org>
Tested-by: Vincent Palatin <vpala...@chromium.org>
---
common/usb_kbd.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/common/usb_kbd.c b/common/usb_kbd.c
index 188763d..3174b5e 100644
--- a/common/usb_kbd.c
+++ b/common/usb_kbd.c
@@ -461,8 +461,13 @@ static int usb_kbd_probe(struct usb_device *dev, unsigned
int ifnum)
usb_set_idle(dev, iface->desc.bInterfaceNumber, REPEAT_RATE, 0);
debug("USB KBD: enable interrupt pipe...\n");
- usb_submit_int_msg(dev, pipe, data->new, maxp > 8 ? 8 : maxp,
- ep->bInterval);
+ if (usb_submit_int_msg(dev, pipe, data->new, maxp > 8 ? 8 : maxp,
+ ep->bInterval) < 0) {
+ printf("Failed to get keyboard state from device %04x:%04x\n",
+ dev->descriptor.idVendor, dev->descriptor.idProduct);
+ /* Abort, we don't want to use that non-functional keyboard. */
+ return 0;
+ }
/* Success. */
return 1;
--
1.8.2.1
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