Thanks


In data lunedì 26 aprile 2010 18:09:16, steven taffs ha scritto:
: > http://www.steventaffs.pwp.blueyonder.co.uk/
> 
> I have used a ads7846 in the project above (see schematic page 6). Follow
>  the uClinux link and click on actelm7_kern12.patch the search for
>  ads7846_ts_input.c it is a hacked up example, that works for the ads7846.
> 
> basically you need to fill in the ads struct's correctly and linux will do
>  the rest
> 
> --- On Mon, 4/26/10, Fabio Giovagnini <fabio.giovagn...@aurion-tech.com> 
wrote:
> > From: Fabio Giovagnini <fabio.giovagn...@aurion-tech.com>
> > Subject: [uClinux-dev] Re: Hi guys, does any of you have experience with
> > touchscreen controllers? To: "Michael Trimarchi"
> > <trimar...@gandalf.sssup.it>
> > Cc: "Dale Larson" <d-lar...@wi.rr.com>, "uClinux development list"
> > <uclinux-dev@uclinux.org>, "Linux-SH" <linux...@vger.kernel.org> Date:
> > Monday, April 26, 2010, 11:45 AM
> > Thanks a lot.
> > But where is a good example for starting from?
> >
> > Thanks
> >
> >
> >
> > In data lunedì 26 aprile 2010 12:41:13, Michael Trimarchi
> >
> > ha scritto:
> > : > hi fabio,
> > >
> > > Fabio Giovagnini wrote:
> > > > Hi Dale,
> > > > maybe I need to be more clear about my
> >
> > condition.
> >
> > > > 1) I connected the ads7843 to general I/O ports
> >
> > because the SPIs
> >
> > > > available on sh2a7203 have been be used for other
> >
> > functions;
> >
> > > It is not a big problem, you can also bitbang on the
> >
> > gpio pin.
> >
> > > > 2) My real problem is the following: I wrote an
> >
> > ADS7843 device driver as
> >
> > > > a button driver of the input subsystem. I
> >
> > configured the ads7843 with INT
> >
> > > > enabled; so when the touch is pressed I have a
> >
> > burst of IRQ. The IRQ
> >
> > > > handler read the ads7843 and return to the input
> >
> > subsystem the abs values
> >
> > > > of the touchscreen.
> > >
> > > I think tha rewrite the code it is not so usefull but
> >
> > reuse the code
> >
> > > using a bitbang interface
> > > it's more simple and don't need a lot of testing
> > >
> > > Michael Trimarchi
> 
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-- 
Fabio Giovagnini

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