Messages in this thread | | | Date | Sun, 29 Jul 2012 21:31:53 +0200 | From | Witold Szczeponik <> | Subject | Re: [PATCH V3 0/3] PNP: Allow PNP resources to be disabled (interface) |
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On 29/07/12 21:22, Rafael J. Wysocki wrote:
> Hi, >
[... long snip ...]
> > Do I understand correctly that you want to disable those things through > sysfs? > > Rafael >
Hi Rafael,
the aim is to select a PNP ACPI option where resources can be disabled (or are not needed). E.g., the parallel port of the 600E can be used with and without IRQ lines. The means to allow for this is to use the sysfs interface to select disabled resources (just like any other resource value). In https://lkml.org/lkml/2011/7/3/41, I used the following example:
echo disable > /sys/bus/pnp/devices/$device/resources echo clear > /sys/bus/pnp/devices/$device/resources echo set irq disabled > /sys/bus/pnp/devices/$device/resources echo fill > /sys/bus/pnp/devices/$device/resources echo activate > /sys/bus/pnp/devices/$device/resources
The third line is made possible by the patch series. All other lines are already implemented.
--- Witold
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