Hello,
I am using a 4 port ftdi chip TYPE_4232H. When I plug in my ftdi4232H hardware I see 4 new devices, /dev/ttyUSB0, /dev/ttyUSB1, /dev/ttyUSB2 and /dev/ttyUSB3.
After I run an application using libftdi such as the example “simple.c” I find /dev/ttyUSB0 has disappear. If I unplug, then plugin the ftdi4232H hardware all four /dev/ttyUSBn device come back.
Dmesg shows:
ftdi_sio 2-2.2:1.0: disconnect by usbfs
ftdi_sio ttyUSB0: FTDI USB Serial Device converter now disconnected from ttyUSB0
ftdi_sio 2-2.2:1.0: device disconnected
How do I use libftdi without disconnecting the serial device convertor from ttyUSB0?
Regards
Michael
