Re: rfkill API

[Dan Williams <dcbw@redhat.com>]

On Tue, 2011-02-01 at 20:51 -0800, Ben Greear wrote:
> On 02/01/2011 08:35 PM, Ben Greear wrote:
> > Hello!
> >
> > I was looking at using one rfkill socket in wpa_supplicant, instead
> > of one per vif.
> >
> > Current wpa_supplicant code seems to treat the API as if there is only
> > as single rfkill object for the entire kernel. I would assume that
> > instead different NICs could have different rfkill status.
> >
> > Is there any way to coorelate a netdevice (or devices)
> > to the rfkill->idx in the
> >
> > struct rfkill_event {
> > u32 idx;
> > u8 type;
> > u8 op;
> > u8 soft;
> > u8 hard;
> > } STRUCT_PACKED;
> >
> >
> > ?
> >
> > Thanks,
> > Ben
> >
> 
> Err, nevermind..looks like you can grub around in sysfs and find the phy,
> and from there, find the devices....

Remember about platform devices.  An rfkill device is not always
associated with a netdevice, and sometimes platform rfkill devices can
block the netdevice rfkill.

So, if you have a laptop with a BIOS rfkill switch, setting that rfkill
switch "softblocked" will hardblock the netdevice rfkill device.  Thus
you cannot unblock the netdevice rfkill until you unblock the
platform/BIOS device rfkill.

Yes, this sucks.

Dan