[vdr] power consumption, powertop and wakups per second with a af9015 device

Heinrich Langos henrik-vdr at prak.org
Mon Mar 16 15:52:18 CET 2009


On Mon, Mar 16, 2009 at 03:07:21PM +0100, Heinrich Langos wrote:
> On Mon, Mar 16, 2009 at 02:19:30PM +0200, Antti Palosaari wrote:
> >
> > remote=0 does not disable polling, it is for selecting correct remote.
> 
> Well, setting remote=0 does have an effect (af9015.c):
> 
>                 if (val == AF9015_IR_MODE_DISABLED || val == 0x04) {
>                         af9015_properties[i].rc_key_map = NULL;
>                         af9015_properties[i].rc_key_map_size  = 0;

Found it in dvb-usb.h:

 * @rc_key_map: a hard-wired array of struct dvb_usb_rc_key (NULL to disable
 *  remote control handling).

> > You can disable polling by setting proper module param for module dvb-usb.
> 
> Where "proper" would be? :-)

modprobe  dvb_usb disable_rc_polling=1

Anyway .. the effect is the same(dvb-usb-remote.c):

> int dvb_usb_remote_init(struct dvb_usb_device *d)
...
>        if (d->props.rc_key_map == NULL ||
>                d->props.rc_query == NULL ||
>                dvb_usb_disable_rc_polling)
>                return 0;

Anyway .. the main problem remains. 

Is there a tool that would only do some minimal actions on a dvb device? 

I would like to help finding the cause for that high idle load.

cheers
-henrik






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