Hi All, I'm tryig to make some hardware using the USB FTDI Single Port Serial for the FT245BM USB chip. The default redhat/fedora 2.4 and 2.6 kernels detect the device fine and I can see the USB device. I can also send data to the chip and see the output on LEDs.
I use this command to send data from a hex fle containing 00FF00... dd if=hex of=/dev/ttyUSB0 However, I'm having difficulty receiving data from the device, I know data is going in to the chips FIFO buffer as the "buffer full" pin goes high. If I use the following command I don't receive any data. dd if=/dev/ttyUSB0 of=tmp Any ideas how to force a read from the usb bus? I'd like to try doing some kernel debugging except when I compile the kernel and reboot it does not initialise the USB controller. <default redhat> set host name localhost.localhost Mounting USB file system Initializing USB controler (usb-uhci) <My compiled kernel 2.4.19> set host name localhost.localhost Mounting USB file system _DOES NOT SAY INITIALISING USB CONTROLER_ I did enable the following kernel options but it does not seem to be finding the controller. USB FTDI Single Port Serial Driver /proc file system support I can mount the proc usb fs but I don.t see my device. mount -t usbdevfs none /proc/bus/usb Please could you let me know what I need to do in order to make my kernel initialise the USB controller Thanks Chris ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ [email protected] To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
