I actually tried using the sysfs gpio interrupts before writing the eQEP
driver. They just weren't fast enough for my application. The motors I
have generate a 4096 ticks per revolution and rotate at like 120 rpm. The
gpio interrupts just couldn't keep up. They stopped working (as in
On Tue, Mar 4, 2014 at 5:56 PM, Dorian Levy dorianal...@gmail.com wrote:
If setting /sys/class/gpio/gpioxx/edge creates an interrupt in the
/proc/interrupts file, why is there no event file associated with it? What
is the best way to use a gpio pin to count the number of times a switch is
I tried the gpio-keys driver. I was able to count the interrupts, but was
not able to determine which pin. I tried the following code, but when I
hooked up switches to two pins the first switch I triggered would give the
correct code, but when I triggered the second switch it would give the
libsoc has an implementation that will allow you to count interrupts by
using poll on the sysfs standard GPIO implementation. You can take a
look to see if that would help you.
https://github.com/jackmitch/libsoc
Cheers,
Jack.
On 05/03/14 15:08, Dorian Levy wrote:
I tried the gpio-keys
If setting /sys/class/gpio/gpioxx/edge creates an interrupt in the
/proc/interrupts file, why is there no event file associated with it? What
is the best way to use a gpio pin to count the number of times a switch is
toggled? I really need to do it on two separate pins in order to ensure two
