On Fri, 5 Nov 1999, David Miller wrote:
> I,m new to rtlinux. Most of my experience is with vxWorks, PSOS, vrtx,
> etc.
> I have an app that I plan to do with rtlinux and ran accross mbuf-0.6.2.
> untard the file into its own dir and ran make and make tests.
> When I run demo I get two messages that says open failed. The mbuff
> device
> file did get created in my local dir.
> Did a make clean and then make tests in the case that the first time
> MBUFF_DEV_NAME pointed to /dev/mbuff instead of ./mbuff. Same result.
OK, citing the manual:
The /dev/mbuff should be created with "mknod /dev/mbuff c 10 254"
If you compile with SHM_DEMO defined, you may create ./mbuff in the samy way
in the mbuf-0.6.2 directory. This file should be there in the distribution -
but is not. I may always say it was omitted because creating this device file
has some security implications, so every user should create it consciously.
Abother reason why it did not work could be no support for misc device driver
in your kernel - do "cat /proc/devices" - you should see line like:
10 misc
Also when you get messages "open failed", there should be a reason given -
could you post the full message? Does the module load succesfully - you
should see message from it in the output of "dmesg" command after
"insmod mbuff.o"
Please tell me if it works or you need more assistance.
--
Tomek
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