Hello, im trying to use tty0tty in order to make virtual com-ports.
I follow the instructions give here http://askubuntu.com/questions/588800/setup-virtual-serial-ports-linux-null-modem-emulator-using-tty0tty/588806#588806
On the step 5
Everytime i get the error
I have tried insmod with the same error.
I cant see any implementations of tty0tty in lsmod, or virtual ports in /dev/tnt*
What should I do?
Thanks in advance, nikitap.
Hello, nikitap:
That’s a general Linux kernel driver issue.
I checked the driver code. With major (240) and minor (1/2/3), that dev node is occupied by ttyTHS1/2/3.
You can add tty0tty_tty_driver->minor_start = 16 before calling tty_register_driver, and that can work.
br
Chenjian
Hi jachen,
I did this modification you suggest, after that I change the TTY0TTY_MINORS to 16, but the system refuses to insert module:
modprobe: ERROR: could not insert ‘tty0tty’: Device or resource busy
can you help-me?
Thanks!
Hello, alfredosalvarani:
Sorry that I’ve not worked on this for long time.
But per my understanding, you can check the kernel code.
And find out the major/minor number for the device you want to register, and find out why it’s conflicted with current system.
Hope that can help.
br
Chenjian