#define HIDPP_DEVICE_TYPE_MASK GENMASK(3, 0)
#define HIDPP_LINK_STATUS_MASK BIT(6)
#define HIDPP_MANUFACTURER_MASK BIT(7)
+#define HIDPP_27MHZ_SECURE_MASK BIT(7)
#define HIDPP_DEVICE_TYPE_KEYBOARD 1
#define HIDPP_DEVICE_TYPE_MOUSE 2
workitem->reports_supported |= STD_MOUSE | HIDPP;
break;
case 3: /* Index 3 is always the keyboard */
+ if (hidpp_report->params[HIDPP_PARAM_DEVICE_INFO] & HIDPP_27MHZ_SECURE_MASK) {
+ hid_info(hdev, "Keyboard connection is encrypted\n");
+ } else {
+ hid_warn(hdev, "Keyboard events are send over the air in plain-text / unencrypted\n");
+ hid_warn(hdev, "See: https://gitlab.freedesktop.org/jwrdegoede/logitech-27mhz-keyboard-encryption-setup/\n");
+ }
+ fallthrough;
case 4: /* Index 4 is used for an optional separate numpad */
workitem->device_type = HIDPP_DEVICE_TYPE_KEYBOARD;
workitem->reports_supported |= STD_KEYBOARD | MULTIMEDIA |
#define HIDPP_SUB_ID_CONSUMER_VENDOR_KEYS 0x03
#define HIDPP_SUB_ID_ROLLER 0x05
#define HIDPP_SUB_ID_MOUSE_EXTRA_BTNS 0x06
+#define HIDPP_SUB_ID_USER_IFACE_EVENT 0x08
+#define HIDPP_USER_IFACE_EVENT_ENCRYPTION_KEY_LOST BIT(5)
#define HIDPP_QUIRK_CLASS_WTP BIT(0)
#define HIDPP_QUIRK_CLASS_M560 BIT(1)
return 1;
}
+ if (hidpp->hid_dev->group == HID_GROUP_LOGITECH_27MHZ_DEVICE &&
+ data[0] == REPORT_ID_HIDPP_SHORT &&
+ data[2] == HIDPP_SUB_ID_USER_IFACE_EVENT &&
+ (data[3] & HIDPP_USER_IFACE_EVENT_ENCRYPTION_KEY_LOST)) {
+ dev_err_ratelimited(&hidpp->hid_dev->dev,
+ "Error the keyboard's wireless encryption key has been lost, your keyboard will not work unless you re-configure encryption.\n");
+ dev_err_ratelimited(&hidpp->hid_dev->dev,
+ "See: https://gitlab.freedesktop.org/jwrdegoede/logitech-27mhz-keyboard-encryption-setup/\n");
+ }
+
if (hidpp->capabilities & HIDPP_CAPABILITY_HIDPP20_BATTERY) {
ret = hidpp20_battery_event_1000(hidpp, data, size);
if (ret != 0)