how to unregister tty driver

mayank_linux · 06-19-2006, 07:00 AM

hello,

I am writting a tty serial driver,but when i insert the module by insmod,it gives this error:

insmod: error inserting 'asd.ko': -1 Device or resource busy
asd is my file name.

this error comes while regitering driver by:
tty_register_driver();

please tell me how to insert this driver.

also how to remove the serial driver which is already loaded.

burntfuse · 06-19-2006, 11:06 AM

Check your kernel configuration and see if the tty serial driver is built into the kernel, or as a module. If it's integrated into the kernel, then set it to be compiled as a module and rebuild. Now you can use lsmod to see which modules are loaded, and rmmod to remove the existing tty serial driver once you find it.