Hi Tim, On Friday 03 August 2007 09:40, Thaens Tim wrote: > Hi all, > > I'm trying to write an application to send and receive data from a PC > through a FTDI UM245R chip to a hardware board. > When plug the USB-cable with the chip into my PC, dmesg gives me the > following information: > > usb 1-2: new full speed USB device using ohci_hcd and address 6 > usb 1-2: configuration #1 chosen from 1 choice > ftdi_sio 1-2:1.0: FTDI USB Serial Device converter detected > drivers/usb/serial/ftdi_sio.c: Detected FT232BM > usb 1-2: FTDI USB Serial Device converter now attached to ttyUSB0 > usb 1-2: usbfs: interface 0 claimed by ftdi_sio while 'brltty' sets > config #1 > ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from > ttyUSB0 > ftdi_sio 1-2:1.0: device disconnected > > I have searched the device description on the internet and found this: > > Device is used to communicate with 8-bit MCU. it provides serial > interface to the MCU via USB bus. From the OSes side USB device is seen > as serail port (/dev/ttyUSB0). You need USB support, usb serial > converter support and ftdi serial conv. support. > > So I think I should connect to /dev/ttyUSB0, but that 'file' doesn't > exist. When I use USBview, I get the following information:
[snip] Your problem comes from brltty which somehow takes control of the device. I can't remember exactly how to solve it though, but googling should help. Laurent Pinchart ------------------------------------------------------------------------- This SF.net email is sponsored by: Splunk Inc. Still grepping through log files to find problems? Stop. Now Search log events and configuration files using AJAX and a browser. Download your FREE copy of Splunk now >> http://get.splunk.com/ _______________________________________________ linux-usb-devel@lists.sourceforge.net To unsubscribe, use the last form field at: https://lists.sourceforge.net/lists/listinfo/linux-usb-devel
