Our friends at Linux-Gamers are hosting a new project entitled lomoco. The purpose of lomoco (which is based upon lmctl) is to provide proprietary Logitech mouse control features under Linux. These options range from changing the CPI and enabling/disabling SmartScroll or CruiseControl. There are also other features planned for future versions of lomoco that is presently at v1.0 BETA 1. As we had shared in our Razer Copperhead review, the mouse works flawlessly under Linux and can use all of the buttons with some X modifications, however, there continues to lack some of the features (such as DPI adjustment) that the Razer Windows drivers provide. The small button on the bottom of the Copperhead is able to adjust the mouse sensitivity somewhat under Linux, but many options are still lacking. With that said, we have intentions on either creating an entirely new FOSS project or modifying lomoco to offer support for the Razer Copperhead. If anyone is interested in contributing feel free to contact Phoronix/pyroCPU (as time is never on our side). For those who have no experience with the Razer Copperhead, or their previous optical mice for that matter, they are truly exceptional mice and very much worth investigating. For reference, below is the lsusb and /proc/bus/input/devices output for the USB Razer Copperhead.

cat /proc/bus/input/devices

I: Bus=0003 Vendor=1532 Product=0101 Version=2100
N: Name="Razer Razer Copperhead Laser Mouse"
P: Phys=usb-0000:00:1d.1-2/input0
H: Handlers=mouse0 event1
B: EV=7
B: KEY=ff0000 0 0 0 0
B: REL=103

I: Bus=0003 Vendor=1532 Product=0101 Version=2100
N: Name="Razer Razer Copperhead Laser Mouse"
P: Phys=usb-0000:00:1d.1-2/input1
H: Handlers=kbd event2
B: EV=100003
B: KEY=1000000000007 ff87207ac14057ff febeffdfffefffff fffffffffffffffe

lsusb -v

Bus 003 Device 002: ID 1532:0101
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 0 (Defined at Interface level)
bDeviceSubClass 0
bDeviceProtocol 0
bMaxPacketSize0 8
idVendor 0x1532
idProduct 0x0101
bcdDevice 21.00
iManufacturer 1 Razer
iProduct 2 Razer Copperhead Laser Mouse
iSerial 0
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 59
bNumInterfaces 2
bConfigurationValue 1
iConfiguration 0
bmAttributes 0xa0
Remote Wakeup
MaxPower 100mA
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Devices
bInterfaceSubClass 1 Boot Interface Subclass
bInterfaceProtocol 1 Keyboard
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 1.00
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 73
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 0x0010 1x 16 bytes
bInterval 2
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 3 Human Interface Devices
bInterfaceSubClass 0 No Subclass
bInterfaceProtocol 2 Mouse
iInterface 0
HID Device Descriptor:
bLength 9
bDescriptorType 33
bcdHID 0.01
bCountryCode 0 Not supported
bNumDescriptors 1
bDescriptorType 34 Report
wDescriptorLength 47
Report Descriptors:
** UNAVAILABLE **
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0010 1x 16 bytes
bInterval 1