puc(4)

NAME

puc - PCI ``Universal'' Communications driver

SYNOPSIS

device pci
device puc
device sio
device ppc
options PUC_FASTINTR

DESCRIPTION

This driver acts as a shim to connect PCI serial and paral

lel ports to
the sio(4) and ppc(4) driver.

The list of supported devices is in sys/dev/puc/pucdata.c.

Support for
new cards should be added there.

If the PUC_FASTINTR option is used, the driver will try to

use fast
interrupts. This should lower the interrupt latency and

should be used
if the sio(4) driver reports silo overflow errors. It can

not be used if
the interrupt is shared.

SEE ALSO

ppc(4), sio(4)

HISTORY

This driver took the idea from the NetBSD puc(4) driver and

still uses
the same structure to describe cards, to ease exchanging

card info.

BUGS

Only serial ports are supported through the sio(4) driver at

the moment.

BSD February 7, 2002

BSD