[Soekris] Re: Patch to Elan520/Soekris 45xx support in FreeBSD-current

Peter Fors pikofarad at bredband.net
Mon Nov 24 03:29:04 UTC 2003


Good work! Do you know of any programming documentation on the net4801 GPIO
or current work going on to support it in *BSD?

Regards,
/ Peter Fors


"Poul-Henning Kamp" <phk at phk.freebsd.dk> wrote in message
news:9626.1069612801 at critter.freebsd.dk...
>
> http://phk.freebsd.dk/patch/cpu_elan.patch
> http://phk.freebsd.dk/patch/CPU_ELAN.4
>
> The major new things are:
>
> ELAN_XTAL option now called CPU_ELAN_XTAL
> ELAN_PPS option now called CPU_ELAN_PPS
>
> /dev/led/error for the error LED.
>
> More LEDs can be configured on the GPIO pins, for instance:
>
>   sysctl machdep.elan_gpio_config="-----LLLE--lp--------LL---------"
>
> Configures active high LEDS on GPIO5,6,7,21 & 22, an active low LED
> on GPIO11.  These will appear as devices "/dev/led/gpio5" etc.
>
> The 'p' on GPIO12 and 'E' on GPIO8 are PPS input and PPS-echo
> configurations (enabled by CPU_ELAN_PPS option).
>
> The led(4) interface is of course not only useful with lamps, you
> can use it with any sort of gadget connected to a GPIO pin.
>
> I can not guarantee that these patches will make it into FreeBSD 5.2.
>
> -- 
> Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
> phk at FreeBSD.ORG         | TCP/IP since RFC 956
> FreeBSD committer       | BSD since 4.3-tahoe
> Never attribute to malice what can adequately be explained by
incompetence.
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