linux-kernel - Re: Re: Re: Re: [PATCH] HID: usbhid: enable remote wakeup for mouse

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Message-ID: <YKJRLMoohNUp4I/t@kroah.com>
Date:   Mon, 17 May 2021 13:19:08 +0200
From:   Greg KH <gregkh@...uxfoundation.org>
To:     马强 <maqianga@...ontech.com>
Cc:     jikos <jikos@...nel.org>,
        "benjamin.tissoires " <benjamin.tissoires@...hat.com>,
        linux-usb <linux-usb@...r.kernel.org>,
        linux-input <linux-input@...r.kernel.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: Re: Re: Re: [PATCH] HID: usbhid: enable remote wakeup for mouse

On Mon, May 17, 2021 at 06:52:37PM +0800, 马强 wrote:
> 
> > >  
> 
> > > > >  
> > >  
> > > > > Thanks for the prompt response.  
> > > > >  
> > > > > We can change "dev->power.should_wakeup" to enabled,  
> > > >  
> > > > I do not understand this statement.  
> > > >  
> > > > > but ultimately it depends on the hardware and BIOS for wakeup.  
> > > >  
> > > > Yes, and the hardware here (USB mice), do not all support this, so you  
> > > > can not enable it universally as it will cause problems, right?  
> > >  
> > > I mean, the kernel should set should_wakeup to enabled  
> > >  
> > > so that system can be awakened when the hardware here(USB mice) supports
> the  
> > > wake-up ability.  
> > 
> > And how do you determine, in the kernel, if the mouse can do that?  
> > 
> > What range of hardware did you test this change with?  
>  
> At the kernel level, "dev->power.should_wakeup" is the device property
> 
> that should enable the wake-up capability. 
> 


Given that you have not tested this change, why should we take this?