Re: [Gumstix-users] i2c-load can't find /dev/robostix

[Peter D. <pda...@pc...>]

Dave,

Indeed I had not insmod robostix_drv.ko, figured that was for uisp
only.  I see no console output from that command though, however,
dmesg indicates I have the new version.  It appears I'm still not
doing something right:

# i2c-load --reset 0x0b info
ERROR: I2cTransfer: CRC failed: Rcvd: 0x00, expecting: 0xc5
ERROR: I2cReadBlock failed
ERROR: Unable to retrieve boot information from i2c address 0x0b

Thanks again for your time,

Peter

On 2/21/06, Dave Hylands <dhy...@gm...> wrote:
> Hi Peter,
>
> > I am setting up the i2c between the gumstix and robo.  Do I need to
> > mknod the /dev/robostix manually or is modprobe i2c-dev & i2c-pxa
> > supposed to handle that device file creation or something?  I notice
> > that running those modprobes doesn't produce any output to the
> > console, but do show in dmesg.  I seem to recall seeing output earlier
> > that reflects the wiki i2c quickstart (which I followed).  Since I
> > build the fs image (but downloaded the modules) do I need to tweak
> > something in the buildroot to make i2c work?
>
> Are you also insmod'ing robostix_drv.ko? I wrote the remainder of this
> email and re-read your email, and realized that you mentioned loading
> the i2c modules, but not the robostix_drv module.
>
> It depends on which software you're using. On 2.6.11 and earlier, the
> /dev/robostix needs to be created manually (although I think in the
> more recent 2.6.11's this was being done in the buildroot
> automatically).
>
> Under 2.6.15, in revision 806, I updated robostix_drv.c so that it now
> does whats required to register with udev automatically.
>
> When you insmod robostix_drv.ko, if you see something like this printed:
>
> Robostix Driver: 0.01 Compiled: Jul 27 2005 at 18:49:14
> Hello World
>
> then you have the old version. If you see something like this printed:
>
> Robostix Driver: SVN: 806 Compiled: Feb 11 2006 at 00:00:00
>
> (notice the SVN and lack of Hello World), then you should have the new ve=
rsion.
>
> --
> Dave Hylands
> Vancouver, BC, Canada
> http://www.DaveHylands.com/
>
>
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--
Peter Darling
pda...@pc...