On Sun, Feb 15, 2015 at 11:10:05AM +0100, faivre.laurent@xxxxxxxxxxx wrote: > Thanks for your reply. > > If I use directly the ftdi_sio driver, I can't read anything. > some details : > $ dmesg > usb 1-1.3: new full-speed USB device number 4 using dwc_otg > usb 1-1.3: New USB device found, idVendor=0403, idProduct=6001 > usb 1-1.3: New USB device strings: Mfr=1, Product=2, SerialNumber=3 > usb 1-1.3: Product: FT232R USB UART > usb 1-1.3: Manufacturer: FTDI > usb 1-1.3: SerialNumber: AD02DY77 > usbcore: registered new interface driver usbserial > usbcore: registered new interface driver usbserial_generic > usbserial: USB Serial support registered for generic > usbcore: registered new interface driver ftdi_sio > usbserial: USB Serial support registered for FTDI USB Serial Device > ftdi_sio 1-1.3:1.0: FTDI USB Serial Device converter detected > usb 1-1.3: Detected FT232RL > usb 1-1.3: FTDI USB Serial Device converter now attached to ttyUSB0 > > > $stty -F /dev/ttyUSB0 ispeed 1200 ospeed 1200 cs7 -cstopb clocal cread > parenb -parodd inpck istrip -crtscts -icanon -echo -echoe -isig -ixon -ixoff > -ixany -icrnl -opost > > $stty -F /dev/ttyUSB0 -a > speed 1200 baud; rows 0; columns 0; line = 0; > intr = ^C; quit = ^\; erase = ^?; kill = ^U; eof = ^D; eol = <undef>; eol2 = > <undef>; swtch = <undef>; start = ^Q; stop = ^S; susp = ^Z; rprnt = ^R; > werase = ^W; lnext = ^V; flush = ^O; > min = 1; time = 0; > parenb -parodd cs7 hupcl -cstopb cread clocal -crtscts > -ignbrk -brkint -ignpar -parmrk inpck istrip -inlcr -igncr -icrnl -ixon > -ixoff -iuclc -ixany -imaxbel -iutf8 > -opost -olcuc -ocrnl onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0 bs0 vt0 > ff0 > -isig -icanon iexten -echo -echoe echok -echonl -noflsh -xcase -tostop > -echoprt echoctl echoke > > >Settings are OK > > $ cat /dev/ttyUSB0 > Nothing appears ! Don't use 'cat' for a serial device, use something like minicom that knows how to directly talk to a serial port properly. thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
