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Bug#375523: hdaps fails to read gyroscope after suspend/resume



On Mon, Jun 26, 2006 at 04:59:09PM +0200, Jeroen van Wolffelaar wrote:
> I have a thinkpad t41 with gyroscope, readable via the hdaps module.
> However, after suspend/resuming, the module no longer works -- it yields
> the same data every time.

The hdaps module is not provided by the kernel. A module have to resume
its hardware correctly.

> Somehow, probably the resume or the suspend code is disabling the
> gyroscope or bringing it in a state that it can't bring it out of again.

The suspend code disables the devices according to the spec. The
gyroscope is a so called plattform device, which don't follows an
interface. This means that the kernel don't provide any code to suspend
or resume this device.

> If you need more info, please ask, I don't know enough of kernels to
> know what kind of info is relevant -- I'm using a default etch system
> with no tweaking to the kernel or to the hdaps module.

It is more likely a problem in the hdaps module.

Bastian

-- 
Lots of people drink from the wrong bottle sometimes.
		-- Edith Keeler, "The City on the Edge of Forever",
		   stardate unknown

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