Problems with bwct-driver and linux-kernel 2.6.24-19 (ubuntu hardy 64 bit)

[anonymous]

I've updated my (64bit) Ubuntu 8.04 installation today (to kernel 2.6.24-19) and the bwct-driver stopped working like before:

Version 0.10.1-RC2-796 starting plugin_cfg.c: Variable minute = '60000' (60000) plugin_cfg.c: Variable tack = '100' (100) plugin_cfg.c: Variable tick = '500' (500) [KVV] Using station 89 [KVV] Using default port 80 [KVV] Using default refresh interval of 60 seconds [KVV] Default abbreviation setting: off lcd4linux.c: initializing driver BWCT BWCT: $Rev: 773 $ BWCT: scanning USB for BWCT LCD... BWCT: could not find a BWCT USB LCD

[michu]

It looks like lcd4linx does not find your device. Are you sure, that you device still exists in the updated distro? You could for example use cat /dev/your/device and check if the device exists..

Maybe you are missing a usb2serial kernel module..

cheers

[anonymous]

The problem is I've never had a device under /dev

The display was somehow automatically detected by lcd4linux.

REMARK: When using a BWCT-Adaptor, you do not have to specify a device explicitly in lcd4linux.conf

Display <name> {

Driver 'BWCT' Size <string> Contrast <number> asc255bug <0|1> Icons <number>

}

[michu]

this call fails

94	    usb_init();
95	    usb_find_busses();
96	    usb_find_devices();
97	    busses = usb_get_busses();

do you have libusb installed? it looks like libusb does not find any valid usb devices. what does the command "lsusb" say?

[anonymous]

libusb and libusb-dev are installed.

lsusb doesn't show anything appropriate... (just showing the 3 attached external hard disks, an 2.0 usb hub and the card reader which is built-in device in the usb hub). The BWCT-Adaptor is attached to the USB hub. (worked in kernel 2.6.24-18)

Bus 002 Device 011: ID 05e3:0606 Genesys Logic, Inc. D-Link DUB-H4 USB 2.0 Hub
Bus 002 Device 010: ID 058f:6331 Alcor Micro Corp. 
Bus 002 Device 005: ID 1058:1001 Western Digital Technologies, Inc. External Hard Disk
Bus 002 Device 004: ID 1058:1001 Western Digital Technologies, Inc. External Hard Disk
Bus 002 Device 003: ID 05e3:0606 Genesys Logic, Inc. D-Link DUB-H4 USB 2.0 Hub
Bus 002 Device 002: ID 1058:1001 Western Digital Technologies, Inc. External Hard Disk
Bus 002 Device 001: ID 0000:0000  
Bus 001 Device 001: ID 0000:0000  

[anonymous]

How should the bwct-adaptor show up in /dev ?

[michu]

Replying to anonymous:

How should the bwct-adaptor show up in /dev ?

check the messages in the syslog when you connect the display, if the display is allready connected, reconnect it and post the output here.

cheers