I can echo and cat /dev/ttyACM0 on my desktop installation of Ubuntu 10.02TLS, but there must be a different way of doing in on the mini2440!
Doing cat /dev/ttyACMO just results in a long period of "thinking" before I hit CTRL C to get back to the prompt. The command: adduser -G root dialout just returns the message: adduser: user 'dialout' in use. Both BUSYBOX_ECHO and BUSYBOX_FANCY_ECHO are [y] cat /sys/devices/platform/s3c24xx-adc/s3c-hwmon/in0_input work OK. /dev/ttyACM0 is crw-rw-rw 1 root dialout 166, 0 on the mini2440. I want to "talk" to the ttyACM0 from a PHP script and the above issue seems to be one roadblock. Thanks, Dave
