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

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Message-ID: <YKJIfmkiDbqzlDjC@kroah.com>
Date:   Mon, 17 May 2021 12:42:06 +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: [PATCH] HID: usbhid: enable remote wakeup for mouse

On Mon, May 17, 2021 at 06:39:06PM +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?

thanks,

greg k-h