[PATCH 3/4] HID: uclogic: present only the working interfaces on the Huion tablets
From: Benjamin Tissoires <hidden>
Date: 2015-02-25 00:06:54
Also in:
lkml
Subsystem:
hid core layer, the rest · Maintainers:
Jiri Kosina, Benjamin Tissoires, Linus Torvalds
The Huion tablets show 3 interfaces. Only the first and the third are currently used. Also remove HID_QUIRK_MULTI_INPUT for the third interface to not create more than needed input nodes. Signed-off-by: Benjamin Tissoires <redacted> --- drivers/hid/hid-uclogic.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/hid/hid-uclogic.c b/drivers/hid/hid-uclogic.c
index 397f1df..c03e076 100644
--- a/drivers/hid/hid-uclogic.c
+++ b/drivers/hid/hid-uclogic.c@@ -840,6 +840,11 @@ static int uclogic_probe(struct hid_device *hdev, hid_err(hdev, "tablet enabling failed\n"); return rc; } + } else if (intf->cur_altsetting->desc.bInterfaceNumber == 2) { + hdev->quirks &= ~HID_QUIRK_MULTI_INPUT; + } else { + /* Ignore all unused interfaces */ + return -ENODEV; } break; }
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2.1.0