rpx-lite led question

rpx-lite led question

[Pablo Le?n]

Hi,

We're new to linuxppc boards and have basic questions:

We're trying to develop a tiny driver for accesing the user leds of our R=
PX-Lite.

Any Sample code on writing linux device drivers?

Where can we find the address map of the board's leds?

Thanyou very much,

Pablo Le=F3n

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Re: rpx-lite led question

[Wolfgang Denk]

Dear Pablo,

in message <200008161901.e7GJ1Qg28132@smtp.wanadoo.es> you wrote:
>
> We're trying to develop a tiny driver for accesing the user leds of our R=
> PX-Lite.
>
> Any Sample code on writing linux device drivers?

Yepp: see http://www.denx.de/solutions-en.html#Drivers

This includes a simple LED driver for the TQM8xxL systems; the RPX is
probably not too much different.

> Where can we find the address map of the board's leds?

Ask the vendor / manufacturer?

Hope this helps,

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
The ultimate barrier is one's viewpoint.
                        - Terry Pratchett, _The Dark Side of the Sun_

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RE: rpx-lite led question

[Paul Fagerburg]

We have an RPX-Classic LF, which also has two user-controlled LED's. The
documentation which came with the board, in the Firmware guide, says that
the LED's are controlled by bits 4 and 5 in BCSR0. The RPX Lite is probably
similar if not identical.

-paul

> -----Original Message-----
> From: owner-linuxppc-embedded@lists.linuxppc.org
> [mailto:owner-linuxppc-embedded@lists.linuxppc.org]On Behalf
> Of Wolfgang
> Denk
> Sent: Wednesday, August 16, 2000 2:38 PM
> To: Pablo Le?n
> Cc: linuxppc-embedded@lists.linuxppc.org
> Subject: Re: rpx-lite led question
>
>
>
> Dear Pablo,
>
> in message <200008161901.e7GJ1Qg28132@smtp.wanadoo.es> you wrote:
> >
> > We're trying to develop a tiny driver for accesing the user
> leds of our R=
> > PX-Lite.
> >
> > Any Sample code on writing linux device drivers?
>
> Yepp: see http://www.denx.de/solutions-en.html#Drivers
>
> This includes a simple LED driver for the TQM8xxL systems; the RPX is
> probably not too much different.
>
> > Where can we find the address map of the board's leds?
>
> Ask the vendor / manufacturer?
>
> Hope this helps,
>
> Wolfgang Denk
>
> --
> Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
> Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
> The ultimate barrier is one's viewpoint.
>                         - Terry Pratchett, _The Dark Side of the Sun_
>


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