On Thursday 31 May 2007 22:37, Shaohua Li wrote:
I like this patch, it may save power while in S3...
I gather that it should also automatically expose the D-state controls
for these PNP devices in sysfs, which may come in very handy...
> +static int pnpacpi_suspend(struct pnp_dev *dev, pm_message_t state)
> +{
> + return acpi_bus_set_power((acpi_handle)dev->data, 3);
> +}
> +
This should usually work, but...
If the device is enabled as a wakeup device, this could
disable its wakeup capability.
So in that case, we need to check _S3W to make sure that
we are not putting the device in a D-state deeper than
it can still wake the system.
-Len
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