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From:   =?UTF-8?q?Stefan=20Br=C3=BCns?= <stefan.bruens@rwth-aachen.de>
To:     <platform-driver-x86@vger.kernel.org>
CC:     <linux-input@vger.kernel.org>,
        =?UTF-8?q?Stefan=20Br=C3=BCns?= <stefan.bruens@rwth-aachen.de>,
        AceLan Kao <acelan.kao@canonical.com>,
        "Andy Shevchenko" <andy@infradead.org>,
        Darren Hart <dvhart@infradead.org>,
        <linux-kernel@vger.kernel.org>
Subject: [PATCH v2 5/5] platform/x86: intel-vbtn: support panel front button
Date:   Thu, 9 Nov 2017 23:44:36 +0100
In-Reply-To: <20171109224436.16472-1-stefan.bruens@rwth-aachen.de>
References: <20171109224436.16472-1-stefan.bruens@rwth-aachen.de>
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The Lenovo Helix 2 and Dell XPS 12 (9Q33) have an extra button on the
front showing a 'Windows' logo, both reporting event codes 0xC2/0xC3
on press/release. On the Dell, both press/release are distinct events
while on the Helix 2 both events are generated on release.

Tested on XPS 12, for info on the Helix 2 see:
https://www.spinics.net/lists/ibm-acpi-devel/msg03982.html

Signed-off-by: Stefan Brüns <stefan.bruens@rwth-aachen.de>

---

Changes in v2:
- Emit KEY_LEFTMETA instead of KEY_MENU

 drivers/platform/x86/intel-vbtn.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/platform/x86/intel-vbtn.c b/drivers/platform/x86/intel-vbtn.c
index a484bcc6393b..0861efe490d0 100644
--- a/drivers/platform/x86/intel-vbtn.c
+++ b/drivers/platform/x86/intel-vbtn.c
@@ -38,6 +38,8 @@ static const struct acpi_device_id intel_vbtn_ids[] = {
 static const struct key_entry intel_vbtn_keymap[] = {
 	{ KE_KEY, 0xC0, { KEY_POWER } },	/* power key press */
 	{ KE_IGNORE, 0xC1, { KEY_POWER } },	/* power key release */
+	{ KE_KEY, 0xC2, { KEY_LEFTMETA } },		/* 'Windows' key press */
+	{ KE_KEY, 0xC3, { KEY_LEFTMETA } },		/* 'Windows' key release */
 	{ KE_KEY, 0xC4, { KEY_VOLUMEUP } },		/* volume-up key press */
 	{ KE_IGNORE, 0xC5, { KEY_VOLUMEUP } },		/* volume-up key release */
 	{ KE_KEY, 0xC6, { KEY_VOLUMEDOWN } },		/* volume-down key press */
-- 
2.15.0


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