Re: [PATCH] virtio_console: Add support for multiple ports for genericguest and host communication
From: Anthony Liguori
Date: Tue Sep 15 2009 - 10:09:52 EST
Gerd Hoffmann wrote:
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.
That works equally well. I don't necessarily think that naming is more
useful.
Regards,
Anthony Liguori
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