Package: setserial
Version: 2.17
I'm trying to use an USB-to-Serial device, model: "U232-P9" (see
http://www.mct.com.tw/prod/rs232.html).
Plugging it in, it is correctly recognized:
root> tail /var/log/messages
Jun 3 14:14:55 lxw2 kernel: drivers/usb/serial/usb-serial.c: USB Serial
support registered for Generic
Jun 3 14:14:55 lxw2 kernel: usbcore: registered new driver
usbserial_generic
Jun 3 14:14:55 lxw2 kernel: usbcore: registered new driver usbserial
Jun 3 14:14:55 lxw2 kernel: drivers/usb/serial/usb-serial.c: USB Serial
Driver core v2.0
Jun 3 14:14:55 lxw2 usb.agent[8496]: pl2303: loaded successfully
Jun 3 14:14:55 lxw2 kernel: drivers/usb/serial/usb-serial.c: USB Serial
support registered for PL-2303
Jun 3 14:14:55 lxw2 kernel: pl2303 2-2:1.0: PL-2303 converter detected
Jun 3 14:14:55 lxw2 kernel: usb 2-2: PL-2303 converter now attached to
ttyUSB0
Jun 3 14:14:55 lxw2 kernel: usbcore: registered new driver pl2303
Jun 3 14:14:55 lxw2 kernel: drivers/usb/serial/pl2303.c: Prolific
PL2303 USB to serial adaptor driver v0.11
So it is advertised as ttyUSB0.
Fine. But now I cannot get hold of or change the parameters with setserial:
root> setserial -g /dev/ttyUSB0
Cannot get serial info: Invalid argument
root> setserial -v -g /dev/ttyUSB0
Cannot get serial info: Invalid argument
root> setserial /dev/ttyUSB0
Cannot get serial info: Invalid argument
There is no mention of USB serial devices in the --help or setserial
manpage.
If another tool has to be used for USB devices, a reference in said
documentation would be very helpful.
On the contrary, the following command works just fine:
root> statserial /dev/ttyUSB0
[displays line status] But I still don't know how to set/get the baud rate.
Now what? How can I know/set the parameters of this port which the
kernel correctly advertised in its log?
Greetings
Peer
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