Messages in this thread | | | Date | Tue, 10 Feb 2009 15:17:18 -0800 | From | Andrew Morton <> | Subject | Re: [PATCH] lis3lv02d: add axes knowledge of HP Pavilion dv5 models |
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On Tue, 10 Feb 2009 23:48:14 +0100 Giuseppe Bilotta <giuseppe.bilotta@gmail.com> wrote:
> On Tue, Feb 10, 2009 at 10:39 PM, Giuseppe Bilotta > <giuseppe.bilotta@gmail.com> wrote: > > On Tue, Feb 10, 2009 at 11:10 AM, Pavel Machek <pavel@suse.cz> wrote: > >> > >> Yeah, that patch. Not sure what to do next... you could grab lis3 > >> manual and see if you can setup chip by hand to get better results... > > > > As Eric pointed out, it looks definitely like an endianness problem, > > although there are a few strange things which are happening at the > > same time. Is the lis3 manual available online somewhere, or can I > > request it to the mfgr? > > 'k, found it on the STMicroelectronics website. Reading the doc about > LIS3LV02DL I see that WHO_AM_I should return 3Ah, but my sensor > returns 3Bh. I'll see if I find the correct datasheet for this one > instead, it might have info about the differences. > > One thing that I noticed is that (modulo axis inversion) I'm able to > use the sensor correctly if I set the thing to only use the high byte, > totally discarding the lower byte: > return *((s8*)(&hi)); > Maybe this sensor needs a different setup to return 12 instead of 8 > bits of information. >
I've lost the plot here. I still intend to merge lis3lv02d-add-axes-knowledge-of-hp-pavilion-dv5-models.patch into 2.6.29. Someone please stop me if that is wrong.
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