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From: Alan Wu <alan.c.wu@gmail.com>
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Date: Mon, 3 Nov 2014 18:26:12 -0800
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Subject: [PATCH] HID: add support for MS Surface Pro 3 Type Cover
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Surface Pro 3 Type Cover that works with Ubuntu (and possibly Arch) from this thread. Both trackpad and keyboard work after compiling my own kernel.
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http://ubuntuforums.org/showthread.php?t=2231207&page=2&s=44910e0c56047e4f93dfd9fea58121ef
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Also includes Jarrad Whitaker's message which sources
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http://winaero.com/blog/how-to-install-linux-on-surface-pro-3/
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which he says is sourced from a Russian site
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Signed-off-by: Alan Wu <alan.c.wu@gmail.com>
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Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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---
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 drivers/hid/hid-core.c          | 6 ++++++
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 drivers/hid/hid-ids.h           | 1 +
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 drivers/hid/hid-microsoft.c     | 2 ++
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 drivers/hid/usbhid/hid-quirks.c | 1 +
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 4 files changed, 10 insertions(+)
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diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
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index 3402033fa52a..3d3820ecaa49 100644
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--- a/drivers/hid/hid-core.c
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+++ b/drivers/hid/hid-core.c
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@@ -702,6 +702,11 @@ static void hid_scan_collection(struct hid_parser *parser, unsigned type)
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 	if (((parser->global.usage_page << 16) == HID_UP_SENSOR) &&
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 	    type == HID_COLLECTION_PHYSICAL)
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 		hid->group = HID_GROUP_SENSOR_HUB;
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+
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+	if (hid->vendor == USB_VENDOR_ID_MICROSOFT &&
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+	    hid->product == USB_DEVICE_ID_MS_TYPE_COVER_3 &&
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+	    hid->group == HID_GROUP_MULTITOUCH)
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+		hid->group = HID_GROUP_GENERIC;
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 }
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 static int hid_scan_main(struct hid_parser *parser, struct hid_item *item)
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@@ -1862,6 +1867,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
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 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K) },
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 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0) },
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 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_OFFICE_KB) },
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+	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_3) },
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 	{ HID_USB_DEVICE(USB_VENDOR_ID_MONTEREY, USB_DEVICE_ID_GENIUS_KB29E) },
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 	{ HID_USB_DEVICE(USB_VENDOR_ID_MSI, USB_DEVICE_ID_MSI_GT683R_LED_PANEL) },
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 	{ HID_USB_DEVICE(USB_VENDOR_ID_NTRIG, USB_DEVICE_ID_NTRIG_TOUCH_SCREEN) },
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diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
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index 7c863738e419..ab562f41c00c 100644
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--- a/drivers/hid/hid-ids.h
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+++ b/drivers/hid/hid-ids.h
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@@ -649,6 +649,7 @@
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 #define USB_DEVICE_ID_MS_SURFACE_PRO_2   0x0799
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 #define USB_DEVICE_ID_MS_TOUCH_COVER_2   0x07a7
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 #define USB_DEVICE_ID_MS_TYPE_COVER_2    0x07a9
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+#define USB_DEVICE_ID_MS_TYPE_COVER_3    0x07dc
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 #define USB_VENDOR_ID_MOJO		0x8282
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 #define USB_DEVICE_ID_RETRO_ADAPTER	0x3201
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diff --git a/drivers/hid/hid-microsoft.c b/drivers/hid/hid-microsoft.c
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index 8ba17a946f2a..cacda43f6a6f 100644
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--- a/drivers/hid/hid-microsoft.c
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+++ b/drivers/hid/hid-microsoft.c
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@@ -274,6 +274,8 @@ static const struct hid_device_id ms_devices[] = {
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 		.driver_data = MS_NOGET },
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 	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500),
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 		.driver_data = MS_DUPLICATE_USAGES },
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+	{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_3),
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+		.driver_data = MS_HIDINPUT },
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 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT),
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 		.driver_data = MS_PRESENTER },
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diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
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index 552671ee7c5d..41814fced1cc 100644
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--- a/drivers/hid/usbhid/hid-quirks.c
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+++ b/drivers/hid/usbhid/hid-quirks.c
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@@ -78,6 +78,7 @@ static const struct hid_blacklist {
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 	{ USB_VENDOR_ID_FORMOSA, USB_DEVICE_ID_FORMOSA_IR_RECEIVER, HID_QUIRK_NO_INIT_REPORTS },
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 	{ USB_VENDOR_ID_FREESCALE, USB_DEVICE_ID_FREESCALE_MX28, HID_QUIRK_NOGET },
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 	{ USB_VENDOR_ID_MGE, USB_DEVICE_ID_MGE_UPS, HID_QUIRK_NOGET },
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+	{ USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_TYPE_COVER_3, HID_QUIRK_NO_INIT_REPORTS },
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 	{ USB_VENDOR_ID_MSI, USB_DEVICE_ID_MSI_GT683R_LED_PANEL, HID_QUIRK_NO_INIT_REPORTS },
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 	{ USB_VENDOR_ID_NEXIO, USB_DEVICE_ID_NEXIO_MULTITOUCH_PTI0750, HID_QUIRK_NO_INIT_REPORTS },
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 	{ USB_VENDOR_ID_NOVATEK, USB_DEVICE_ID_NOVATEK_MOUSE, HID_QUIRK_NO_INIT_REPORTS },
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-- 
1e63a38
2.1.0
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