linux-kernel - [PATCH 3.16 130/233] HID: usbhid: Add a quirk for raphnet multi-gamepad adapters

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Date:   Sat, 09 Sep 2017 22:47:14 +0100
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org, "Raphael Assenat" <raph@...hnet.net>,
        "Jiri Kosina" <jkosina@...e.cz>
Subject: [PATCH 3.16 130/233] HID: usbhid: Add a quirk for raphnet
 multi-gamepad adapters

3.16.48-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Raphael Assenat <raph@...hnet.net>

commit d6ea2f88ac3659b799d8079a4fbda4f8faf6ff90 upstream.

The raphnet.net 4nes4snes and 2nes2snes multi-joystick adapters use a single
HID report descriptor with one report ID per controller. This has the effect
that the inputs of otherwise independent game controllers get packed in one
large joystick device.

With this patch each controller gets its own /dev/input/jsX device, which is
more natural and less confusing than having all inputs going to the same place.

Signed-off-by: Raphael Assenat <raph@...hnet.net>
Signed-off-by: Jiri Kosina <jkosina@...e.cz>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/hid/hid-ids.h           | 7 +++++++
 drivers/hid/usbhid/hid-quirks.c | 3 +++
 2 files changed, 10 insertions(+)

--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -1015,4 +1015,11 @@
 #define USB_VENDOR_ID_RISO_KAGAKU	0x1294	/* Riso Kagaku Corp. */
 #define USB_DEVICE_ID_RI_KA_WEBMAIL	0x1320	/* Webmail Notifier */
 
+#define USB_VENDOR_ID_MULTIPLE_1781	0x1781
+#define USB_DEVICE_ID_RAPHNET_4NES4SNES_OLD	0x0a8d
+
+#define USB_VENDOR_ID_DRACAL_RAPHNET	0x289b
+#define USB_DEVICE_ID_RAPHNET_2NES2SNES	0x0002
+#define USB_DEVICE_ID_RAPHNET_4NES4SNES	0x0003
+
 #endif
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -143,6 +143,9 @@ static const struct hid_blacklist {
 	{ USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_QUAD_HD, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_SYNAPTICS, USB_DEVICE_ID_SYNAPTICS_TP_V103, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_HOLTEK_ALT, USB_DEVICE_ID_HOLTEK_ALT_KEYBOARD_A096, HID_QUIRK_NO_INIT_INPUT_REPORTS },
+	{ USB_VENDOR_ID_MULTIPLE_1781, USB_DEVICE_ID_RAPHNET_4NES4SNES_OLD, HID_QUIRK_MULTI_INPUT },
+	{ USB_VENDOR_ID_DRACAL_RAPHNET, USB_DEVICE_ID_RAPHNET_2NES2SNES, HID_QUIRK_MULTI_INPUT },
+	{ USB_VENDOR_ID_DRACAL_RAPHNET, USB_DEVICE_ID_RAPHNET_4NES4SNES, HID_QUIRK_MULTI_INPUT },
 
 	{ 0, 0 }
 };