On Mon, Jan 3, 2011 at 5:09 PM, Kfir Lavi <lavi.kfir@xxxxxxxxx> wrote:
So what do expose in sysfs? for each register - a file of it's own? or you get a bulk of data to one file?On Mon, Jan 3, 2011 at 3:00 PM, Philip Downer <phil@xxxxxxxxx> wrote:
When I had to do this recently I used sysfs, I have no idea if it's the best way but it certainly was very effective. Remember in sysfs that each file should only have one value.On 03/01/11 12:47, Kfir Lavi wrote:
I have a FPGA that is constantly changing (its on development phase).
I want to let userspace app to update those registers, but don't want to
create an API yet.
What is the best way to open a range of registers to userspace, so no
driver update is required?
Once it's setup though you can just write to the sysfs files, I started by writing simple perl scripts to test things before starting to write more complex apps.
HTH
Phil
Thanks,
Kfir
I thought about using 3 files in sysfs.
1. address of the register
2. data to write to the register
3. trigger that do the write
Please share your comments.
Regards,
Kfir
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