[RFC PATCH 4/5] hvc_console: Add tty window resizing

Christian Borntraeger borntraeger at de.ibm.com
Thu Oct 16 22:58:40 EST 2008


Am Donnerstag, 16. Oktober 2008 schrieb Rusty Russell:
> > The patch provides the hvc_resize() function to update the terminal
> > window dimensions (struct winsize) for a specified hvc console.
> > The function stores the new window size and schedules a function
> > that finally updates the tty winsize and signals the change to
> > user space (SIGWINCH).
> > Because the winsize update must acquire a mutex and might sleep,
> > the function is scheduled instead of being called from hvc_poll()
> > or khvcd.
> 
> I want this functionality for lguest, too.  But I don't see anything which 
> uses this call yet?   Are we going to use the config_change notifier from 
> virtio?  (Which IIRC neither S/390 nor lguest have plumbed in).

I have some prototype patches for virtio_console, but did not find the time to 
finish them.

Christian



More information about the Linuxppc-dev mailing list