Linux USB debug connection to LuminaryMicro evaluation board

I am trying to connect a Stellaris LM3S8962 evaluation kit to a linux host machine. I am using the CodeSourcery G++ for the development toolchain. When I try to run a helloworld example the connection fails with this message:

arm-stellaris-eabi-sprite: error: E104. I/O Error communicating with USB Device. ar开发者_开发知识库m-stellaris-eabi-sprite: waiting for GDB connection, to pass error along warning: Remote failure reply: E.fatal.E104. I/O Error communicating with USB Device. arm-stellaris-eabi-sprite: error: E002. Not initialized

When I connect the evaluation board with the USB cable it seems the device is made available to the system:

Mar 24 14:37:16 n6-ws2 kernel: usb 5-2: USB disconnect, address 5 Mar 24 14:37:18 n6-ws2 kernel: usb 5-2: new full speed USB device using uhci_hcd and address 6 Mar 24 14:37:19 n6-ws2 kernel: usb 5-2: configuration #1 chosen from 1 choice

Also, it seems that I can connect in some way via the command line tool (but I do get some strange characters):

[mlong@n6-ws2 bin]$ ./arm-stellaris-eabi-sprite -i CodeSourcery ARM Debug Sprite (Sourcery G++ 4.4-104) armusb: [speed=] ARMUSB device

armusb:///�̙ - ؎� (�̙)

Does anyone have any suggestions I could try?

Thanks a lot,

Mike

Sorry for the bump, but this is one of the few pages around that deals with this error and a bunch of those are just redirects to this page :P

Anyway, it turns out that in my case this was a permissions issue. If you execute:

sudo ./arm-stellaris-eabi-sprite -i 

then you will get an uncorrupt name for the device. Then it becomes an issue of giving the user the required permissions for the USB device. To do this you need to alter the file at:

/lib/udev/rules.d/50-udev-default.rules

find the libusb device nodes line and change the mode to 0666. Do a reboot and things will be sweet.

If anyone has a better solution let me know :)