Messages in this thread | | | Date | Tue, 15 Sep 2009 16:08:24 +0200 | From | Gerd Hoffmann <> | Subject | Re: [PATCH] virtio_console: Add support for multiple ports for generic guest and host communication |
| |
On 09/15/09 14:57, Anthony Liguori wrote: > That's probably not what we want. I imagine what we want is: > > /dev/ttyV0 > /dev/ttyV1 > /dev/ttyVN
Yes.
> And then we want: > > /sys/class/virtio-console/ttyV0/name -> "org.qemu.clipboard"
Yes.
> Userspace can detect when new virtio-consoles appear via udev events. > When it sees a new ttyVN, it can then look in sysfs to discover it's name.
No. udev can create symlinks for you, so apps don't have to dig into sysfs. You'll need a rule along the lines (untested):
SUBSYSTEM=="virtio", \ DRIVERS="virtio-console", \ SYMLINK+="vcon/$attr{name}"
then udev will create a /dev/vcon/org.qemu.clipboard symlink pointing to dev/ttyV0. Apps can just open /dev/vcon/$name then.
cheers, Gerd
| |