Hi Chris,
probably you can do cat /proc/device-tree o/p to see if such a node exist in the device tree file.
also you can check
arch/ppc/boot/dts/ directory and check the .dts file to check if such an entry really exist in the .dts file which
you are using.
Since in your case
np = of_find_compatible_node(NULL,NULL,
"xilinx,cpld-led");
"xilinx,cpld-led");
returns NULL, its a sign that the entry does not exist in the .dts file your system is using.
thnaks,
Vishwas S
I got a problem with the kernel function "of_find_compatible_node". I
use it with: np = of_find_compatible_node(NULL,NULL,
"xilinx,cpld-led"); or with np = of_find_compatible_node(NULL,NULL,
"cpld-led"); but none of this works, because I get a null-pointer back.
But it suppose to work? The target is a PPC-walnut-board.
Which is the mechanism behind this function, which namespace is parsed
in order to detect devices on the board? Can I parse the whole namespace
in order to list up all devices?
What else can I do to solve this problem?
Thank you in advance...
Regards /chris
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