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Message-ID: <d1351198778762a135751934d1977539.squirrel@intranet.cs.nmsu.edu>
Date: Tue, 21 Jul 2009 14:40:31 -0600
From: "Rick L. Vinyard, Jr." <rvinyard@...nmsu.edu>
To: "Linux USB" <linux-usb@...r.kernel.org>,
"LKML" <linux-kernel@...r.kernel.org>
Subject: Blacklisting a usbhid device
I'm trying to write a driver for the Logitech G13 keypad, but one of the
first problems I'm running into is the usbhid driver claiming the device.
I'm working on a Fedora 11 system, so I checked the usbhid driver and it
is built in.
I applied the following patch and rebuilt the kernel, but usbhid still
claims the device. Another problem I noticed was that I received a compile
error when I used HID_QUIRK_IGNORE rather than 0x00000004.
Is it not possible to blacklist a device without compiling usbhid as a
module?
Also below is the output of lsusb -vvv for the G13.
Any suggestions on how to either work within the usbhid framework or how
to get usbhid to stop claiming the device?
Thanks,
Rick
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 6301010..611a24d 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -18,6 +18,7 @@
#ifndef HID_IDS_H_FILE
#define HID_IDS_H_FILE
+#define USB_DEVICE_ID_LOGITECH_G13 0xc21c
#define USB_VENDOR_ID_A4TECH 0x09da
#define USB_DEVICE_ID_A4TECH_WCP32PU 0x0006
#define USB_DEVICE_ID_A4TECH_X5_005D 0x000a
diff --git a/drivers/hid/usbhid/hid-quirks.c
b/drivers/hid/usbhid/hid-quirks.c
index d8f7423..65de9ef 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -63,6 +63,7 @@ static const struct hid_blacklist {
{ USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SMARTJOY_DUAL_PLUS,
HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
{ USB_VENDOR_ID_WISEGROUP_LTD2, USB_DEVICE_ID_SMARTJOY_DUAL_PLUS,
HID_QUIRK_NOGET | HID_QUIRK_MULTI_INPUT },
+ { USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G13, 0x00000004 },
{ 0, 0 }
};
Bus 005 Device 007: ID 046d:c21c Logitech, Inc.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x046d Logitech, Inc.
idProduct 0xc21c
bcdDevice 1.03
iManufacturer 0
iProduct 1 G13
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 41
bNumInterfaces 1
bConfigurationValue 1
iConfiguration 0
bmAttributes 0x80
(Bus Powered)
MaxPower 500mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 2
bInterfaceClass 3 Human Interface Device
bInterfaceSubClass 0 No Subclass
bInterfaceProtocol 0 None
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.11
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 61
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0008 1x 8 bytes
bInterval 2
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x02 EP 2 OUT
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0040 1x 64 bytes
bInterval 1
Device Status: 0x0000
(Bus Powered)
--
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