>Hello all, >I'm sure there's a standard way of doing this: I'd like to access some info >from the DTS file from a usermode program (things like address of device, >etc...) >What is the best way to do this ? Write a parser ? Or query the running kernel >somehow ?
Compile your kernel with CONFIG_PROC_DEVICETREE, then you can access all entries via filesystem: [r...@t:~] # ll /proc/device-tree/ -r--r--r-- 1 root root 4 Oct 18 17:17 #address-cells -r--r--r-- 1 root root 4 Oct 18 17:17 #size-cells dr-xr-xr-x 2 root root 0 Oct 18 17:17 chosen -r--r--r-- 1 root root 13 Oct 18 17:17 compatible dr-xr-xr-x 3 root root 0 Oct 18 17:17 cpus -r--r--r-- 1 root root 13 Oct 18 17:17 dtb-revision -r--r--r-- 1 root root 4 Oct 18 17:17 interrupt-parent dr-xr-xr-x 8 root root 0 Oct 18 17:17 localbus dr-xr-xr-x 2 root root 0 Oct 18 17:17 memory -r--r--r-- 1 root root 5 Oct 18 17:17 model -r--r--r-- 1 root root 1 Oct 18 17:17 name dr-xr-xr-x 2 root root 0 Oct 18 17:17 p...@f0000d00 -r--r--r-- 1 root root 9 Oct 18 17:17 serialno dr-xr-xr-x 32 root root 0 Oct 18 17:17 soc5...@f0000000 -- Ivo Schenk http://www.delphin.de/ Delphin Technology AG Sitz der Gesellschaft: Bergisch Gladbach Registergericht: Amtsgericht Koeln, HRB 47544 Vorstand: Ursula Renner (Vorsitzende), Frank Ringsdorf Vorsitzender des Aufsichtsrats: Peter Renner _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
