Hi all, the default linux-latest.img provides a very simple initial process
for booting linux on M5. But I doubt that if it misses something. I wrote a
device driver and try to insert it into the kernel at boot, to do this I add
*insmod race.ko* to the initial scripte */etc/init.d/rcS*. Everything seems
all right, the init function of the driver work correctly to print something
on the screen, and I type* lsmod* to list the modules currently in the
linux, the driver that I add come up as I expected, which is
*
# lsmod
Module Size Used by Not tainted
race 9664 0
*
When I use mknod to make a node for it, which is *mknod /dev/race c 254 0*,
a node appear in the /dev, which is /dev/race. But when I tried to open it
by
*fd = open ("/dev/race",O_RDWR);*
it fails. Furthermore, when I tried to insert the module at boot time using
*modprobe *instead of *insmod*, it fails at boot time
*loading script...
modprobe: could not parse modules.dep
Script from M5 readfile is empty, starting bash shell...
*
the modules.dep is supposed to be /lib/modules/2.6.13 and the directory is
not exist, I created the directory *modules/2.6.13* myself but I can't
create the files which are supposed to be there. I know that they are
created by *depmod* but even Iadd this to the initial script, the open
function still fail.
Now my major concern is to open the device correctly. I used a gentoo stage3
image, it is even not able to insert the driver, the race doesn't exist when
I type lsmod. does anybody have some idea how to deal with this? Thanks !
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