06-09-2008
Thanks dukessd for your reply,
I had found the solution (from the software vendor support).
They said that some pins in the serial port (on the PCI card) should be connected together or else the process using this port will hang !!
These pins are:
7 to 8
1 to 4 to 9
Also,
this link may help anybody else regarding this issue.
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LEARN ABOUT NETBSD
gpiolock
GPIOLOCK(4) BSD Kernel Interfaces Manual GPIOLOCK(4)
NAME
gpiolock -- support for multi-position keylocks attached to GPIO pins
SYNOPSIS
gpiolock* at gpio? offset ? mask ?
gpiolock* at gpio?
DESCRIPTION
The gpiolock driver allows connecting of multi-position keylocks over GPIO pins. The keylock driver registers with an in-kernel keylock sup-
porting system and provides kauth(9) support through an experimental security model. The keylock state can be queried using the hw.keylock
sysctl variables. Only locks with 2-4 positions are currently supported. The pin number is specified in the kernel configuration with the
offset locator. The mask locator denotes the pins used for the lock (minimum 2, maximum 4 pins are used). The offset and mask can also be
specified when gpiolock is attached at runtime using the GPIOATTACH ioctl(2) on the gpio(4) device.
SEE ALSO
gpio(4), intro(4)
HISTORY
The gpiolock driver first appeared in NetBSD 6.0.
AUTHORS
The gpiolock driver was written by Marc Balmer <marc@msys.ch>.
BSD
August 21, 2009 BSD