serial ioctl implementation

gallon sylvestre

Hello,

I try to implement a serial driver with kdmf and I've got a problem with
the implementation of IOCTL_SERIAL_GET_COMMSTATUS.

My device load good. But when I open a hyperterminal the first input is
read, the second do nothing and when the third appears hyperterminal
loop on IOCTL_SERIAL_GET_COMMSTATUS and freeze.

Here is my code :


Here is my debug output:


For the debug output, the first key pressed on hyperterminal produce the
write, the second do nothing and when I pressed a third time a key the
IOCTL_SERIAL_GET_COMMSTATUS loop appears and don't stop.

The only solution to stop that is to kill hyperterminal with the task
manager.

Thanks for you help

--
Gallon sylvestre
OpenBSD fan | Rathaxes Core Developper
LSE researcher | kernel developer for adeneo
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