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From: Benjamin Tissoires <benjamin.tissoires@redhat.com>
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Date: Thu, 26 Mar 2015 12:41:57 -0400
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Subject: [PATCH] HID: logitech-hidpp: add a module parameter to keep firmware
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gestures
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The Logitech T650 used to report 3 fingers swipes to the up as a press on the
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Super key. When we switched the touchpad to the raw mode, we also disable such
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firmware gesture and some users may rely on it.
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Unfortunately, 3 finger swipes are still not supported in most of the Linux
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environments, which means that we disabled a feature of the touchpad.
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Allow users to revert the raw reporting mode and keep going with the firmware
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gestures by providing a new module parameter.
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Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
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Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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---
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drivers/hid/hid-logitech-hidpp.c | 10 ++++++++++
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1 file changed, 10 insertions(+)
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diff --git a/drivers/hid/hid-logitech-hidpp.c b/drivers/hid/hid-logitech-hidpp.c
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index a93cefe0e522..00304f742eca 100644
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--- a/drivers/hid/hid-logitech-hidpp.c
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+++ b/drivers/hid/hid-logitech-hidpp.c
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@@ -28,6 +28,11 @@ MODULE_LICENSE("GPL");
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MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>");
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MODULE_AUTHOR("Nestor Lopez Casado <nlopezcasad@logitech.com>");
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+static bool disable_raw_mode;
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+module_param(disable_raw_mode, bool, 0644);
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+MODULE_PARM_DESC(disable_raw_mode,
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+ "Disable Raw mode reporting for touchpads and keep firmware gestures.");
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+
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#define REPORT_ID_HIDPP_SHORT 0x10
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#define REPORT_ID_HIDPP_LONG 0x11
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@@ -1159,6 +1164,11 @@ static int hidpp_probe(struct hid_device *hdev, const struct hid_device_id *id)
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hidpp->quirks = id->driver_data;
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+ if (disable_raw_mode) {
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+ hidpp->quirks &= ~HIDPP_QUIRK_CLASS_WTP;
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+ hidpp->quirks &= ~HIDPP_QUIRK_DELAYED_INIT;
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+ }
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+
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if (hidpp->quirks & HIDPP_QUIRK_CLASS_WTP) {
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ret = wtp_allocate(hdev, id);
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if (ret)
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--
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2.1.0
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