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Forum Discussion
Writing to the LCD (RN516)
Does anyone have any notes on how to enable hardware support or load kernel modules etc, in order to obtain a workable method to access the displays on ReadyNAS devices from within alternative linux OSs?
Specifically I'm interested in RN516 and Pro6, but it would be great if we could start to share knowledge to help everyone with this particular issue.
I've been running various different OSs on an RN516, and have stuff like fan control sorted.
I've also sorted out a nasty ACPI issue which hogs a large chunk of CPU power due to interrupts from IRQ9.
But, I've run out of talent so far on anything that lets me access the LCD hardware.
Any pointers? And no, there's nothing in /dev like /dev/lcd or /dev/ttyS1 or similar that will do that job. Stuff that works inside ReadyNAS OS6 doesn't work in other linux OSs, presumably due to a lack of hardware support in the kernel, or the correct module.
So far I've completely failed to work out how to resolve this. I managed for the fan/temperature/PWM hardware, but the LCD is kicking my butt.
1 Reply
I believe I now have the source (or most of it), for the LCD driver/kernel patch, and for the readynas userspace code for handling LCD operations.
This is right at the limit of my experience with linux, software development - with the proximity to the kernel and device drives/modules being somewhat beyond me.
Does anyone have relevant experience of turning a kernel patch into a standalone loadable module, that might work on newer kernels (I believe there could well be some changes needed)? I'm not equipped to make the changes to the code, nor create the right kind of build environment to even attempt a compile of a loadable module.
Anyone out there able to operate in this territory, and have an interest in preserving the life of ReadyNAS hardware beyond the creaking OS6?
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