Re: [PATCH] driver core: Make probe_type of driver accessible via sysfs

[Wenchao Hao]

In some scenarios, you need to know whether the probe() callback in struct
driver which triggered by device_add() or driver_register() is called
synchronous or not, and modify this mode according to user requirements.

While kernel now does not open an interface for users to query or
modify, so I add this interface.

I ignored updates to ABI document due to no previous experience with ABI 
change,
and I will bring updates to the ABI in next submission.

On 2021/7/8 20:28, Greg Kroah-Hartman wrote:
> On Thu, Jul 08, 2021 at 08:20:10PM +0800, Wenchao Hao wrote:
> > Like drivers_autoprobe of bus, make probe_type of driver
> > accessible via sysfs, so we can get and set a driver's probe_type
> > happily.
> Why is this needed?  Who will use it?  And where is the
> Documentation/ABI/ file update for this new sysfs file which is required
> for all sysfs files?
>
> thanks,
>
> greg k-h
> .