On Tue, 3/14/17, John Syne wrote:
Subject: Re: [beagleboard] Is there a way to send an interrupt from userspace
to the PRU-ICSS?
To: beagleboard@googlegroups.com
Date: Tuesday, March 14, 2017, 10:20 AM
On Mar 13,
2017, at 9:24 PM, ags
> On Mar 13, 2017, at 9:24 PM, ags wrote:
>
> @William Hermans like you I won't be able to dig into the gory details of
> loading Linux. This is an interesting read (albeit high-level and prompting
> more questions). I think I can say a few things without understanding all the
> details:
>
>
So, there is a driver, although I do not know the name of this driver that
populates /proc/irq/ , but if you cat /proc/interrupts, you'll easily see
which number correlates to what.
root@beaglebone:~# cat /proc/interrupts
CPU0
16: 39266767 INTC 68 Level gp_timer
20: 11
I see what you are saying. But (from what I've read) it seems that many
would also say that you can't *receive* interrupts in userspace. I guess
that's technically true, but uio does provide a way, through sysfs, to
determine if an interrupt was fired.
Also from what I've read (I've been doing
On Tue, Mar 7, 2017 at 9:45 PM, ags wrote:
> The mechanism for generating an interrupt from a PRU to the A8 (host) is
> well-documented. Is there a way to send an interrupt (one of the 64 system
> interrupt events documented in the PRU-ICSS literature) from userspace?
>
No, there are no such thi
The mechanism for generating an interrupt from a PRU to the A8 (host) is
well-documented. Is there a way to send an interrupt (one of the 64 system
interrupt events documented in the PRU-ICSS literature) from userspace?
>From reading the TI documentation, the only two that seem to be candidates
