linux-kernel - [PATCH] usbhid: Add the malfunctioning SiGma Micro chip to the list of hid-quirks

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Date:	Tue, 16 Aug 2011 11:05:20 +0100
From:	Jeremiah Matthey <sprg86@...il.com>
To:	Jiri Kosina <jkosina@...e.cz>
Cc:	Benjamin_Tissoires@...itech.com, linux-kernel@...r.kernel.org,
	linux-input@...r.kernel.org
Subject: [PATCH] usbhid: Add the malfunctioning SiGma Micro chip to the list
 of hid-quirks

Patch to add SiGma Micro-based keyboards (1c4f:0002) to hid-quirks.

These keyboards dont seem to allow the records to be initialized, and hence a
timeout occurs when the usbhid driver attempts to initialize them. The patch
just adds the signature for these keyboards to the hid-quirks list with the
setting HID_QUIRK_NO_INIT_REPORTS. This removes the 5-10 second wait for the
timeout to occur.

This is technically a resubmit, first time i posted i didnt include the right people in the destination, was just aimed at the list, so might have gone unnoticed. (First (submitted) kernel patch, I'll learn with time :))


diff -ru linux-3.0.1-clean/drivers/hid/hid-ids.h linux-3.0.1-patched/drivers/hid/hid-ids.h
--- linux-3.0.1-clean/drivers/hid/hid-ids.h	2011-08-05 05:59:21.000000000 +0100
+++ linux-3.0.1-patched/drivers/hid/hid-ids.h	2011-08-14 15:25:58.129865922 +0100
@@ -568,6 +568,9 @@
 #define USB_DEVICE_ID_SAMSUNG_IR_REMOTE	0x0001
 #define USB_DEVICE_ID_SAMSUNG_WIRELESS_KBD_MOUSE	0x0600
 
+#define USB_VENDOR_ID_SIGMA_MICRO	0x1c4f
+#define USB_DEVICE_ID_SIGMA_MICRO_KEYBOARD	0x0002
+
 #define USB_VENDOR_ID_SKYCABLE			0x1223
 #define	USB_DEVICE_ID_SKYCABLE_WIRELESS_PRESENTER	0x3F07
 
diff -ru linux-3.0.1-clean/drivers/hid/usbhid/hid-quirks.c linux-3.0.1-patched/drivers/hid/usbhid/hid-quirks.c
--- linux-3.0.1-clean/drivers/hid/usbhid/hid-quirks.c	2011-08-05 05:59:21.000000000 +0100
+++ linux-3.0.1-patched/drivers/hid/usbhid/hid-quirks.c	2011-08-14 15:26:06.289865845 +0100
@@ -89,6 +89,7 @@
 
 	{ USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_MULTI_TOUCH, HID_QUIRK_MULTI_INPUT },
 	{ USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_CHICONY_WIRELESS, HID_QUIRK_MULTI_INPUT },
+	{ USB_VENDOR_ID_SIGMA_MICRO, USB_DEVICE_ID_SIGMA_MICRO_KEYBOARD, HID_QUIRK_NO_INIT_REPORTS },
 	{ 0, 0 }
 };
 
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