On 04/19/2013 11:40 AM, Aleksandar Kuktin wrote:
>> On Fri, 19 Apr 2013 17:25:03 +0200
>> [email protected] wrote:
>>
>> Hey guys!
>> I'm now searched a long while through the net for a information which
>> option in the kernel (compilation) contains the driver for my
>> soundcard (Realtek ALC662), i found nothing. So my question is: Where
>> is a good place to look which deviece needs which kernel
>> configuration.
> Practice.
>
> Option A: enable all drivers for that piece of hardware an
> then tick them off one-by-one untill you find the one that is
> required for the device to work.
> Option B: enable all drivers, then use lspci to find the device on your
> bus and see which driver it uses.
> Option C: compile all drivers as modules and set the module-auto-load
> option. After booting, use lsmod and lspci to see which
> driver is used.
>
Here is a bash script to output all kernel drivers (modules).
One can boot to a live dvd and run it and it will tell you the kernel
driver modules for all the hardware that it found.
#!/bin/bash
for i in `find /sys/ -name modalias -exec cat {} \;`; do
/sbin/modprobe --config /dev/null --show-depends $i ;
done | rev | cut -f 1 -d '/' | rev | sort -u
This one will find the drivers for a given class/device
#!/bin/sh
#
# Find all modules and drivers for a given class device.
#
if [ $# != "1" ] ; then
echo
echo "Script to display the drivers and modules for a specified
sysfs class device"
echo "usage: $0 <CLASS_NAME>"
echo
echo "example usage:"
echo " $0 sda"
echo "Will show all drivers and modules for the sda block device."
echo
exit 1
fi
DEV=$1
if test -e "$1"; then
DEVPATH=$1
else
# find sysfs device directory for device
DEVPATH=$(find /sys/class -name "$1" | head -1)
test -z "$DEVPATH" && DEVPATH=$(find /sys/block -name "$1" | head -1)
test -z "$DEVPATH" && DEVPATH=$(find /sys/bus -name "$1" | head -1)
if ! test -e "$DEVPATH"; then
echo "no device found"
exit 1
fi
fi
echo "looking at sysfs device: $DEVPATH"
if test -L "$DEVPATH"; then
# resolve class device link to device directory
DEVPATH=$(readlink -f $DEVPATH)
echo "resolve link to: $DEVPATH"
fi
if test -d "$DEVPATH"; then
# resolve old-style "device" link to the parent device
PARENT="$DEVPATH";
while test "$PARENT" != "/"; do
if test -L "$PARENT/device"; then
DEVPATH=$(readlink -f $PARENT/device)
echo "follow 'device' link to parent: $DEVPATH"
break
fi
PARENT=$(dirname $PARENT)
done
fi
while test "$DEVPATH" != "/"; do
DRIVERPATH=
DRIVER=
MODULEPATH=
MODULE=
if test -e $DEVPATH/driver; then
DRIVERPATH=$(readlink -f $DEVPATH/driver)
DRIVER=$(basename $DRIVERPATH)
echo -n "found driver: $DRIVER"
if test -e $DRIVERPATH/module; then
MODULEPATH=$(readlink -f $DRIVERPATH/module)
MODULE=$(basename $MODULEPATH)
echo -n " from module: $MODULE"
fi
echo
fi
DEVPATH=$(dirname $DEVPATH)
done
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