diff options
Diffstat (limited to 'drivers/hid/usbhid/hid-core.c')
| -rw-r--r-- | drivers/hid/usbhid/hid-core.c | 23 |
1 files changed, 19 insertions, 4 deletions
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c index 18e5ddd722cd..586f835f1caa 100644 --- a/drivers/hid/usbhid/hid-core.c +++ b/drivers/hid/usbhid/hid-core.c @@ -4,7 +4,7 @@ * Copyright (c) 1999 Andreas Gal * Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz> * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc - * Copyright (c) 2006-2007 Jiri Kosina + * Copyright (c) 2006-2008 Jiri Kosina */ /* @@ -641,9 +641,7 @@ static void hid_find_max_report(struct hid_device *hid, unsigned int type, unsigned int size; list_for_each_entry(report, &hid->report_enum[type].report_list, list) { - size = ((report->size - 1) >> 3) + 1; - if (type == HID_INPUT_REPORT && hid->report_enum[type].numbered) - size++; + size = ((report->size - 1) >> 3) + 1 + hid->report_enum[type].numbered; if (*max < size) *max = size; } @@ -781,6 +779,8 @@ static int usbhid_start(struct hid_device *hid) unsigned int n, insize = 0; int ret; + clear_bit(HID_DISCONNECTED, &usbhid->iofl); + usbhid->bufsize = HID_MIN_BUFFER_SIZE; hid_find_max_report(hid, HID_INPUT_REPORT, &usbhid->bufsize); hid_find_max_report(hid, HID_OUTPUT_REPORT, &usbhid->bufsize); @@ -882,12 +882,24 @@ static int usbhid_start(struct hid_device *hid) set_bit(HID_STARTED, &usbhid->iofl); mutex_unlock(&usbhid->setup); + /* 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: usb_free_urb(usbhid->urbin); usb_free_urb(usbhid->urbout); usb_free_urb(usbhid->urbctrl); + usbhid->urbin = NULL; + usbhid->urbout = NULL; + usbhid->urbctrl = NULL; hid_free_buffers(dev, hid); mutex_unlock(&usbhid->setup); return ret; @@ -924,6 +936,9 @@ static void usbhid_stop(struct hid_device *hid) usb_free_urb(usbhid->urbin); usb_free_urb(usbhid->urbctrl); usb_free_urb(usbhid->urbout); + usbhid->urbin = NULL; /* don't mess up next start */ + usbhid->urbctrl = NULL; + usbhid->urbout = NULL; hid_free_buffers(hid_to_usb_dev(hid), hid); mutex_unlock(&usbhid->setup); |