> As per my understanding, tty count keeps the count of tty_open and > tty_release, that is > how many open and close happened on the tty device file(/dev/ttyS*). > The requirement here is a tty count check, if it is greater than zero then > only it should > proceed for further execution.
The physical port has a different lifetime to the struct tty_struct (which may change many times within the lifetime of the port). You can't simply go from the port to a tty struct and assume this is safe and will not change. > Kindly elaborate more on the same if it's not correct. Look at how tty_port_tty_get is used _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
