rmmod_realmagichwl_kernelland.sh

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#!/bin/sh
#
# Sanity check
#
if ! grep -q ^realmagichwl_kernelland /proc/modules; then 
    echo None of realmagichwl_kernelland\*.o modules is loaded.
    exit -1
fi
#
# Is there an application using the device?
#
if fuser -s /dev/realmagichwl*; then 
    echo Cannot proceed: applications have devices open:
    fuser -v /dev/realmagichwl*
    exit -1
fi
#
# Is the fb device loaded, and in use?
#
if grep -q ^realmagichwl_kernelland_fb /proc/modules; then
    UC=`grep ^realmagichwl_kernelland_fb /proc/modules |awk '{print $3}'`
    if [ $UC = 0 ]; then 
	rmmod realmagichwl_kernelland_fb 
	if [ $? != 0 ]; then echo Cannot rmmod realmagichwl_kernelland_fb; exit -1; fi
	echo rmmod realmagichwl_kernelland_fb: done.
    else
	echo Cannot proceed: realmagichwl_kernelland_fb.o use count is $UC.
	exit -1
    fi
fi
#
# Is the osdbuf device loaded, and in use?
#
if grep -q ^realmagichwl_kernelland_osdbuf /proc/modules; then
    UC=`grep ^realmagichwl_kernelland_osdbuf /proc/modules |awk '{print $3}'`
    if [ $UC != 0 ]; then 
	echo I have to switch off some osdbuf:
	i=0
	while [ $i -lt 32 ]; do if ./osdbuf_fb_control $i -o0 &>/dev/null; then echo switched off osdbuf on board \#$i.; fi; i=$[$i+1]; done
    fi
    rmmod realmagichwl_kernelland_osdbuf
    if [ $? != 0 ]; then echo Cannot rmmod realmagichwl_kernelland_osdbuf; exit -1; fi
    echo rmmod realmagichwl_kernelland_osdbuf: done.
fi
#
# Is the yuvbuf device loaded, and in use?
#
if grep -q ^realmagichwl_kernelland_yuvbuf /proc/modules; then
    UC=`grep ^realmagichwl_kernelland_yuvbuf /proc/modules |awk '{print $3}'`
    if [ $UC != 0 ]; then 
	echo I have to switch off some yuvbuf:
	i=0
	while [ $i -lt 32 ]; do if ./yuvbuf_control $i -y0 &>/dev/null; then echo switched off yuvbuf on board \#$i.; fi; i=$[$i+1]; done
    fi
    rmmod realmagichwl_kernelland_yuvbuf
    if [ $? != 0 ]; then echo Cannot rmmod realmagichwl_kernelland_yuvbuf; exit -1; fi
    echo rmmod realmagichwl_kernelland_yuvbuf: done.
fi
#
# Is the sound device loaded, and in use?
#
if grep -q ^realmagichwl_kernelland_snd /proc/modules; then
    UC=`grep ^realmagichwl_kernelland_snd /proc/modules |awk '{print $3}'`
    if [ $UC != 0 ]; then 
	echo "cannot rmmod realmagichwl_kernelland_snd, device is in use."
	exit -1;
    fi
    rmmod realmagichwl_kernelland_snd
    if [ $? != 0 ]; then echo Cannot rmmod realmagichwl_kernelland_snd; exit -1; fi
    echo rmmod realmagichwl_kernelland_snd: done.
fi
#
# Ok, handle the base module now
#
rmmod realmagichwl_kernelland
if [ $? != 0 ]; then echo Cannot rmmod realmagichwl_kernelland; exit -1; fi
echo rmmod realmagichwl_kernelland: done.
#
echo completed.