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Actually, I have read the guilds and tried, but it didnot work. So I asked here. |
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Two devices related with "can usb" were found when I used the udevadm: |
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|
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#udevadm info -a -p /sys/devices/pci0000\:00/0000\:00\:0f.4/usb2/2- |
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2/2-2\:1.0 |
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looking at device '/devices/pci0000:00/0000:00:0f.4/usb2/2-2/2-2:1.0': |
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KERNEL=="2-2:1.0" |
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SUBSYSTEM=="usb" |
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DRIVER=="CAN_USB331" |
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ATTR{bInterfaceNumber}=="00" |
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ATTR{bAlternateSetting}==" 0" |
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ATTR{bNumEndpoints}=="04" |
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ATTR{bInterfaceClass}=="00" |
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ATTR{bInterfaceSubClass}=="00" |
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ATTR{bInterfaceProtocol}=="00" |
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ATTR{modalias}=="usb:v0AB4p0001d0002dc00dsc00dp00ic00isc00ip00" |
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|
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looking at parent device '/devices/pci0000:00/0000:00:0f.4/usb2/2-2': |
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KERNELS=="2-2" |
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SUBSYSTEMS=="usb" |
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DRIVERS=="usb" |
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ATTRS{configuration}=="" |
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ATTRS{bNumInterfaces}==" 1" |
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ATTRS{bConfigurationValue}=="1" |
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ATTRS{bmAttributes}=="80" |
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ATTRS{bMaxPower}=="500mA" |
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ATTRS{urbnum}=="20" |
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ATTRS{idVendor}=="0ab4" |
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ATTRS{idProduct}=="0001" |
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ATTRS{bcdDevice}=="0002" |
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ATTRS{bDeviceClass}=="00" |
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ATTRS{bDeviceSubClass}=="00" |
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ATTRS{bDeviceProtocol}=="00" |
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ATTRS{bNumConfigurations}=="1" |
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ATTRS{bMaxPacketSize0}=="16" |
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ATTRS{speed}=="12" |
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ATTRS{busnum}=="2" |
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ATTRS{devnum}=="2" |
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ATTRS{version}==" 1.00" |
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ATTRS{maxchild}=="0" |
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ATTRS{quirks}=="0x0" |
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ATTRS{authorized}=="1" |
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ATTRS{manufacturer}=="esd-gmbh" |
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ATTRS{product}=="CAN-USB 543" |
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ATTRS{serial}=="GD001494" |
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|
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The module was loaded by an alias in /etc/modules.d/esdcan: |
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alias char-major-50 esdcan-usb331 |
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But I cannot find the major:minor informations in the udev info above. |
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|
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I tried the rules: |
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SUBSYSTEM=="usb", DRIVER=="CAN_USB331", ATTR{serial}=="GD001494", NAME="can0" |
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SUBSYSTEM=="usb", DRIVER=="CAN_USB331", NAME="can0" |
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DRIVER=="CAN_USB331", NAME="can0" |
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and |
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SUBSYSTEM=="usb", ATTR{serial}=="GD001494", NAME="can%n" |
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But any one of them does not work. |
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|
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Anyone can help me? |
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2009/8/27 KH <gentoo-user@××××××××××××××××.de>: |
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> Song Zhiwei schrieb: |
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>> Hi all, |
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>> |
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>> I complied a driver esdcan_usb331.so. I'd like use udev to create |
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>> character devices /dev/can0 and /dev/can1 with major 50 and minor 0/1 |
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>> for the driver. How to write the udev rule for it? |
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>> |
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>> The dmesg is: |
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>> esd CAN driver: CAN_USB331 |
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>> esd CAN driver: baudrate not set |
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>> esd CAN driver: mode = 0x00000000, major = 50, verbose = 0x00000001 |
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>> esd CAN driver: version 3.8.3 06:03:32 Aug 24 2009: successfully loaded |
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>> usbcore: registered new interface driver CAN_USB331 |
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>> |
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> |
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> Hi, |
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> |
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> there are two good guides for this: |
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> |
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> http://www.gentoo.org/doc/en/udev-guide.xml |
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> http://www.reactivated.net/writing_udev_rules.html |
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> |
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> Regards kh |
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> |
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> |
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