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authorHans de Goede <hdegoede@redhat.com>2018-07-11 13:38:35 +0300
committerJiri Kosina <jkosina@suse.cz>2018-07-17 16:25:40 +0300
commit7ed3f281d8f36c19ca15fe7fcc52200668a73d72 (patch)
treec7154b5a157a6d16f9723a18eb91944ee8b87d2a /drivers/hid/hid-elan.c
parent19588bee0ea569bd6cc6bea5b284c34f1f526a59 (diff)
downloadlinux-7ed3f281d8f36c19ca15fe7fcc52200668a73d72.tar.xz
HID: elan: Add a flag for selecting if the touchpad has a LED
Note all Elan touchpads have a LED make this configurable using a flag in hi_id.driver_data. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'drivers/hid/hid-elan.c')
-rw-r--r--drivers/hid/hid-elan.c13
1 files changed, 9 insertions, 4 deletions
diff --git a/drivers/hid/hid-elan.c b/drivers/hid/hid-elan.c
index 6969fb5344a5..ae1e24061c0a 100644
--- a/drivers/hid/hid-elan.c
+++ b/drivers/hid/hid-elan.c
@@ -36,6 +36,8 @@
#define ELAN_MUTE_LED_REPORT 0xBC
#define ELAN_LED_REPORT_SIZE 8
+#define ELAN_HAS_LED BIT(0)
+
struct elan_drvdata {
struct input_dev *input;
u8 prev_report[ELAN_INPUT_REPORT_SIZE];
@@ -450,9 +452,11 @@ static int elan_probe(struct hid_device *hdev, const struct hid_device_id *id)
if (ret)
goto err;
- ret = elan_init_mute_led(hdev);
- if (ret)
- goto err;
+ if (id->driver_data & ELAN_HAS_LED) {
+ ret = elan_init_mute_led(hdev);
+ if (ret)
+ goto err;
+ }
return 0;
err:
@@ -466,7 +470,8 @@ static void elan_remove(struct hid_device *hdev)
}
static const struct hid_device_id elan_devices[] = {
- { HID_USB_DEVICE(USB_VENDOR_ID_ELAN, USB_DEVICE_ID_HP_X2_10_COVER) },
+ { HID_USB_DEVICE(USB_VENDOR_ID_ELAN, USB_DEVICE_ID_HP_X2_10_COVER),
+ .driver_data = ELAN_HAS_LED },
{ }
};
MODULE_DEVICE_TABLE(hid, elan_devices);