Messages in this thread | | | Date | Tue, 10 Feb 2009 12:07:37 +0100 | Subject | Re: [PATCH] lis3lv02d: add axes knowledge of HP Pavilion dv5 models | From | Giuseppe Bilotta <> |
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On Tue, Feb 10, 2009 at 11:34 AM, Éric Piel <eric.piel@tremplin-utc.net> wrote: > (putting back the cc's, please keep them when answering) > > Palatis Tseng schreef: >> Éric Piel 提到: >>> No problem, the patch from Giuseppe will get the axex fine :-) >>> >>> However, could you let use know if you too, on your laptop, have huge >>> fluctuations even when the laptop is not moving? Could you give an idea >>> of the minimum and maximum values of each axis when the laptop is set >>> normally on the desk without touching it? >>> >>> Thanks, >>> Eric >> I took a look at the patch but my axis on dv5 is Y_inverted (instead of >> X_inverted.) i patched my lis3lv02d.c and added: >> >> === cut here === >> AXIS_DMI_MATCH("HPDV5", "HP Pavilion dv5", y_inverted), >> === cut here === >> >> and neverball worked just correct with it so i'm kinda sure my patch >> about the axis should be correct. >> >> i've also tested with x_inverted, but whenever i evaluate the left side >> of my notebook the ball goes to the left side too which is not real-world >> behavier. >> >> mine is a HP Pavilion dv5 1003ax with AMD PUMA platform. >> `dmidecode | grep "Product Name" says: >> (under "System Information"...) >> Product Name: HP Pavilion dv5 Notebook PC > Giuseppe, > Palatis mentions that on his laptop the sensor is actually y_inverted. > Could you check your laptop? In particular it would be nice if you could > describe the values for the four positions defined in the documentation > file. BTW, what is the exact version of your laptop? Is it the same as > Palatis?
With my patch applied:
Left raised: 0 -> 32k Right raised: 0 -> -32k
Front raised: 1 -> -32k back raised: 1 -> 32k
Upside down: 2 -> 32k
So it seems that my model inverts the Z axis too, I'll have to fix that. However, this last test is tricky because unless the laptop is completely upside down the Z axis can go from -32k to +32k with just a couple of degrees (around the 90°)
I'll update my patch to invert the X and Z axis for my model.
> Palatis, could you let us know if you also have a lot of "noise" in the > values. That is, if when using jstest /dev/input/js0 you see big changes > in the values. Is it like on Giuseppe's laptop of around 8000? > > Moreover I'm wondering if this could be an error on LSB/MSB ordering. > Maybe looking at the raw values (cat > /sys/devices/platform/lis3lv02d/position) would give more insight...
amd64 architecture here. Laptop flat:
oblomov@oblomov:~$ cat /sys/devices/platform/lis3lv02d/position (-256,256,14592) oblomov@oblomov:~$ cat /sys/devices/platform/lis3lv02d/position (0,256,14848) oblomov@oblomov:~$ cat /sys/devices/platform/lis3lv02d/position (-256,256,14848) oblomov@oblomov:~$ cat /sys/devices/platform/lis3lv02d/position (-256,0,14336) oblomov@oblomov:~$ cat /sys/devices/platform/lis3lv02d/position (-256,512,14336) oblomov@oblomov:~$ cat /sys/devices/platform/lis3lv02d/position (256,256,14592)
Left edge raised: oblomov@oblomov:~$ cat /sys/devices/platform/lis3lv02d/position (5120,512,13312) oblomov@oblomov:~$ cat /sys/devices/platform/lis3lv02d/position (5632,512,13312)
You might be onto something.
The dmi for my Pavilion is:
Handle 0x0001, DMI type 1, 27 bytes System Information Manufacturer: Hewlett-Packard Product Name: HP Pavilion dv5 Notebook PC Version: F.09 Serial Number: (x-ed out) UUID: (x-ed out) Wake-up Type: Power Switch SKU Number: (x-ed out) Family: 103C_5335KV
So it might be that different pavilions have different sensors?
-- Giuseppe "Oblomov" Bilotta -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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