What is the OMAP_MUX replacement?

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1

Hello all, I have been reading that there is a change in the way the BeagleBone Black does things. I have seen alot of posts that say the OMAP_MUX has gone away. I was wondering, what is the current way of handling the pin mux on Angstrom?

Thanks,

Gregg

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Just for the record. This is all SW. Processor is the same as BeagleBone. This is not due to any HW changes.

Gerald

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Gerald,

Thanks for the quick update. I understand (at least a little). Do you how Angstrom is handling the device space in user land? While this is a change only in software, it makes accessing the hardware different and the code written against the old OMAP_MUX system won’t work. I am looking for sources of information on migrating my cape to the latest systems. I used a lot of FS level device access to setup and control the hardware. I assume there is a new way of doing these same things without writing kernel drivers.

Thoughts?

Thanks,

Gregg

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Hi,

I’m a noob so I could be off base but the kernel documentation explains how to configure the GPIOs:

https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/tree/Documentation/gpio.txt?id=refs/tags/v3.8.11

I tried the /sys interface and it seems to work as described.

Glen