Re: [PATCH] Explicitly disable BT radio using rfkill interface on

[Mario Limonciello <mario_limonciello@dell.com>]

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Hi Matthew:

Matthew Garrett wrote:
> On Wed, Jul 01, 2009 at 03:13:33PM -0700, Marcel Holtmann wrote:
>   
>
> I'm really still not quite clear on what the issue here is. At boot, 
> there are hid devices that need to be quirked into hci mode. Over 
> suspend these devices return to their original state. So something needs 
> to be done to quirk them back on resume. Why is this a kernel issue at 
> all?
>
>   
At boot, the top level device exposes two virtual HID devices.  A
userspace utility prods one of the HID devices and then the top level
device exposes an HCI device.  Upon S3/resume, a reset-resume happens,
and the HCI device is gone.  The system thinks that they are in the same
state after S3 (with the exception of the missing HCI device) so a UDEV
ADD or CHANGE event doesn't happen.

-- 
Mario Limonciello
*Dell | Linux Engineering*
mario_limonciello@dell.com


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