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path: root/drivers/hid/usbhid
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Diffstat (limited to 'drivers/hid/usbhid')
-rw-r--r--drivers/hid/usbhid/hid-core.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index 2afc8617f59..6383145b584 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -874,6 +874,15 @@ static int usbhid_start(struct hid_device *hid)
set_bit(HID_STARTED, &usbhid->iofl);
+ /* Some keyboards don't work until their LEDs have been set.
+ * Since BIOSes do set the LEDs, it must be safe for any device
+ * that supports the keyboard boot protocol.
+ */
+ if (interface->desc.bInterfaceSubClass == USB_INTERFACE_SUBCLASS_BOOT &&
+ interface->desc.bInterfaceProtocol ==
+ USB_INTERFACE_PROTOCOL_KEYBOARD)
+ usbhid_set_leds(hid);
+
return 0;
fail: