diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/hid/usbhid/hid-core.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c index 762cb35e769..cec3bffa0a9 100644 --- a/drivers/hid/usbhid/hid-core.c +++ b/drivers/hid/usbhid/hid-core.c @@ -129,6 +129,9 @@ MODULE_PARM_DESC(mousepoll, "Polling interval of mice"); #define USB_DEVICE_ID_CYPRESS_HIDCOM 0x5500 #define USB_DEVICE_ID_CYPRESS_ULTRAMOUSE 0x7417 +#define USB_VENDOR_ID_DELL 0x413c +#define USB_DEVICE_ID_DELL_W7658 0x2005 + #define USB_VENDOR_ID_DELORME 0x1163 #define USB_DEVICE_ID_DELORME_EARTHMATE 0x0100 #define USB_DEVICE_ID_DELORME_EM_LT20 0x0200 @@ -469,6 +472,8 @@ static const struct hid_blacklist { { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY, HID_QUIRK_POWERBOOK_HAS_FN | HID_QUIRK_IGNORE_MOUSE }, { USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY, HID_QUIRK_POWERBOOK_HAS_FN | HID_QUIRK_IGNORE_MOUSE }, + { USB_VENDOR_ID_DELL, USB_DEVICE_ID_DELL_W7658, HID_QUIRK_RESET_LEDS }, + { 0, 0 } }; @@ -964,6 +969,44 @@ void usbhid_init_reports(struct hid_device *hid) } /* + * Reset LEDs which BIOS might have left on. For now, just NumLock (0x01). + */ +static int hid_find_field_early(struct hid_device *hid, unsigned int page, + unsigned int hid_code, struct hid_field **pfield) +{ + struct hid_report *report; + struct hid_field *field; + struct hid_usage *usage; + int i, j; + + list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) { + for (i = 0; i < report->maxfield; i++) { + field = report->field[i]; + for (j = 0; j < field->maxusage; j++) { + usage = &field->usage[j]; + if ((usage->hid & HID_USAGE_PAGE) == page && + (usage->hid & 0xFFFF) == hid_code) { + *pfield = field; + return j; + } + } + } + } + return -1; +} + +static void usbhid_set_leds(struct hid_device *hid) +{ + struct hid_field *field; + int offset; + + if ((offset = hid_find_field_early(hid, HID_UP_LED, 0x01, &field)) != -1) { + hid_set_field(field, offset, 0); + usbhid_submit_report(hid, field->report, USB_DIR_OUT); + } +} + +/* * Traverse the supplied list of reports and find the longest */ static void hid_find_max_report(struct hid_device *hid, unsigned int type, int *max) @@ -1348,6 +1391,8 @@ static int hid_probe(struct usb_interface *intf, const struct usb_device_id *id) usbhid_init_reports(hid); hid_dump_device(hid); + if (hid->quirks & HID_QUIRK_RESET_LEDS) + usbhid_set_leds(hid); if (!hidinput_connect(hid)) hid->claimed |= HID_CLAIMED_INPUT; |