[libvirt-users] correct way to hot-add cdrom ?

[Alexandr]

Good day to all. i have problems with cdrom hot adding code. currently i 
using virDomainAttachDevice with type=file, device=cdrom, dev=hdc, this 
code works for machine with one ide hdd and one ide cdrom, but this not 
work for machine with only one ide hdd, and i looking for solution to 
hot add cdrom to machine independent of existing devices or i need way 
to determinate which target device can be attached to vm. thanks in 
advance for any help.