kobo aurahd accelerometer?

cgm999 · 07-04-2013, 04:32 PM

from telnet/ssh try evtest /dev/input/input2

horizontal:
Event: time 1372969847.228965 ------- Report Sync ------ x: 2 y: 0 p: 0 ------------
Event: time 1372969847.728904 ------- Report Sync ------ x: 3 y: 0 p: 0 ------------
Event: time 1372969848.228938 ------- Report Sync ------ x: 2 y: -1 p: 0 ------------

vetical:
Event: time 1372969873.668871 ------- Report Sync ------ x: 1 y: 21 p: 0 ------------
Event: time 1372969874.168864 ------- Report Sync ------ x: 1 y: 23 p: 0 ------------
Event: time 1372969874.668861 ------- Report Sync ------ x: 1 y: 21 p: 0 ------------
Event: time 1372969875.168869 ------- Report Sync ------ x: 1 y: 22 p: 0 ------------
Event: time 1372969875.668965 ------- Report Sync ------ x: 0 y: 21 p: 0 ------------

Ken Maltby · 07-06-2013, 08:00 PM

Mouse emulation?

Luck;
Ken

BWinmill · 07-06-2013, 08:24 PM

It's hard to tell whether it's an accelerometer from that dataset, since you appear to be testing two orientations with a two axis device.

If you want to try the following six orientations, you'll be able to tell if it's an accelerometer:

Front and back
Left edge and right edge
Bottom edge and top edge

You should notice the following patterns:
One pair of orientations will always show small values for x and y
Another pair of orientations will show a large value for x, and small value for y. The sign of x will be positive in one of the orientations, and negative in the other orientation.
Another pair of orientations will show a large value for y, and small value for x. The sign of y will be positive in one of the orientations, and negative in the other orientation.

It is possible to simplify the measuements, but this is fairly robust.

07-04-2013, 04:32 PM	#1
cgm999 Enthusiast Posts: 46 Karma: 54894 Join Date: Jun 2013 Device: kobo	kobo aurahd accelerometer? from telnet/ssh try evtest /dev/input/input2 horizontal: Event: time 1372969847.228965 ------- Report Sync ------ x: 2 y: 0 p: 0 ------------ Event: time 1372969847.728904 ------- Report Sync ------ x: 3 y: 0 p: 0 ------------ Event: time 1372969848.228938 ------- Report Sync ------ x: 2 y: -1 p: 0 ------------ vetical: Event: time 1372969873.668871 ------- Report Sync ------ x: 1 y: 21 p: 0 ------------ Event: time 1372969874.168864 ------- Report Sync ------ x: 1 y: 23 p: 0 ------------ Event: time 1372969874.668861 ------- Report Sync ------ x: 1 y: 21 p: 0 ------------ Event: time 1372969875.168869 ------- Report Sync ------ x: 1 y: 22 p: 0 ------------ Event: time 1372969875.668965 ------- Report Sync ------ x: 0 y: 21 p: 0 ------------

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07-06-2013, 08:00 PM	#2
Ken Maltby Wizard Posts: 4,465 Karma: 6900052 Join Date: Dec 2009 Location: The Heart of Texas Device: Boox Note2, AuraHD, PDA,	Mouse emulation? Luck; Ken

07-06-2013, 08:24 PM	#3
BWinmill Nameless Being	It's hard to tell whether it's an accelerometer from that dataset, since you appear to be testing two orientations with a two axis device. If you want to try the following six orientations, you'll be able to tell if it's an accelerometer: Front and back Left edge and right edge Bottom edge and top edge You should notice the following patterns: One pair of orientations will always show small values for x and y Another pair of orientations will show a large value for x, and small value for y. The sign of x will be positive in one of the orientations, and negative in the other orientation. Another pair of orientations will show a large value for y, and small value for x. The sign of y will be positive in one of the orientations, and negative in the other orientation. It is possible to simplify the measuements, but this is fairly robust.