Comtrol Rocketport UNIVERSAL PCI 32-port

John Baldwin jhb at
Thu Jan 26 08:32:49 PST 2006

On Thursday 26 January 2006 05:54, Vitaliy Skakun wrote:
> Hi everybody!
> One problem arised:
> when doing in the shell
> echo "~WS" > /dev/cuaR00
> for several times as quick as I can, I get panic with the following
> message: panic: device_unbusy: called for non-busy device rp0
> same thing when trying to send data to /dev/cuaR00 via JDK File streams ...
> :(((
> (Some kind of barcode printers are attached to this multiport card)
> Any help will be kindly accepted.
> Cheers
> Vit

Try the attached patch.  tty's don't use D_TRACKCLOSE but rp(4) was expecting 
that rpclose() was called on every close, not just the last close.

John Baldwin <jhb at>  <><
"Power Users Use the Power to Serve"  =
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