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What would be required to support reading the CPU temperature in a MVL6.0 Z530 distribution?

Are there kernel configuration option requirements?

Are there modules that need to be included in the RFS?

Does anything need to be started in the init to support this capability?

On a different distribution udevadm has a different version, newer by about .20 subrevision numbers.

On that distribution I can execute a udevadm info request using arguments like --query=property --name=/dev/ttyS0.

I cannot get a similar result at all using the udevadm on my MVL6.0 distribution.  The version shows as 124 whereas I have a version 157 on that other distribution.  Rebuilding udevadm appears to require a lot of utilities to be installed.

Any suggestions, I merely need the udev information for a USB serial device because I need to monitor that during runtime.  These devices can be unplugged or reinserted and my application needs to follow this.  At present I'm considering that I'll have to iteratively check and ls -1 /dev/ttyUSB* result and then look backwards in my system log (dmesg), and that isn't the way I should be doing that.

- RT

Using the default build for MVL6.0 on Intel ATOM Z530; my root login immediately gives me:

"-sh: can't access tty; job control turned off"

tty is /usr/bin/tty, executing this gives me "/dev/console"

If I "echo 1 > /dev/console" I see that echo out on my default console.  Also if I "echo 1 > /dev/tty0" I see that echo out on my default console.

My boot line is:

bzImage console=tty0 noinitrd ip=0.0.0.0:::::eth0:off rw root=/dev/sda2

General Google searches seem to indicate that busybox is either build incorrectly, or there's some other problem associated with busybox.

My normal shell commands work; however if I execute /bin/sh or just enter "sh" I get

sh: can't access tty; job control turned off

Seems to be a protection thing when I see that; however ... I'm root.

Privileges for /dev/tty, ttyS0, ttyS1, ttyS2, and ttyS3 are all:

crw-rw---- whereas for all others tty0-63 are crw--w---- More »

I use this to get to devshell:

bitbake -c devshell linux

Then, from the devshell, I do:

make

I get:

CHK include/linux/version.h CHK include/linux/utsrelease.h SYMLINK include/asm -> include/asm-mips CALL scripts/checksyscalls.sh <stdin>:1421:2: warning: #warning syscall marker not implemented <stdin>:1425:2: warning: #warning syscall trace not implemented CHK include/linux/compile.h LD init/mounts.o mips-montavista-linux-gnu-ld: unrecognized option '-Wl,-rpath-link,/user/oneil/core/pjmips/tmp/staging/mips-mv-linux/usr/lib' mips-montavista-linux-gnu-ld: use the --help option for usage information make[1]: *** [init/mounts.o] Error 1 make: *** [init] Error 2

Anyone else seen this? What's the resolution?

--Pat ONeil More »