May 20, 2012, 10:55:57 PM5/20/12
I've attached my BB to a modem dev platform using two methods.
1. USB (Modem) to USB (BB) FTDI Solution
2. RS232(Modem) to USBtoSerial(BB) Prolific PL2303 Solution
Drivers for both have been installed via opkg, and both give the same reusults, all characters are transmitted from the BB, but only about 50% of the characters returned are recived by the application. (See attached)
To date, I've tried to use ps to locate another application that might be using my /dev/ttyUSBx port, but without success (See below)
root@beaglebone:~/tcp_serial_redirect# ps | grep tty
238 root 1952 S /sbin/agetty tty1 38400
269 root 1772 S grep tty
root@beaglebone:~/tcp_serial_redirect# ps | grep usb
16 root 0 SW< [musb-hdrc.0]
17 root 0 SW< [musb-hdrc.1]
271 root 1772 S grep usb
I was hoping that fuser might be of service, but has been fruitless thus far. Hardware flow control is turned on in the modem, but since they modem platform works well under the same circumstances with my Ubuntu 10.04 host machine, I haven't changed anything there.