linux-kernel - Re: [PATCH] HID: hyperv: register as a wakeup source

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Date:	Mon, 4 Aug 2014 11:23:09 +0200 (CEST)
From:	Jiri Kosina <jkosina@...e.cz>
To:	Dexuan Cui <decui@...rosoft.com>
cc:	gregkh@...uxfoundation.org, linux-input@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	driverdev-devel@...uxdriverproject.org, olaf@...fle.de,
	apw@...onical.com, jasowang@...hat.com, kys@...rosoft.com,
	haiyangz@...rosoft.com
Subject: Re: [PATCH] HID: hyperv: register as a wakeup source

On Fri, 1 Aug 2014, Dexuan Cui wrote:

> With this patch, we can move the mouse to wake up the VM after the VM executes
> "echo freeze > /sys/power/state".
> 
> This addresses part of https://bugzilla.redhat.com/show_bug.cgi?id=1086100
> 
> Cc: K. Y. Srinivasan <kys@...rosoft.com>
> Signed-off-by: Dexuan Cui <decui@...rosoft.com>

Applied, thanks.

> ---
>  drivers/hid/hid-hyperv.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/drivers/hid/hid-hyperv.c b/drivers/hid/hid-hyperv.c
> index f52dbcb..31fad64 100644
> --- a/drivers/hid/hid-hyperv.c
> +++ b/drivers/hid/hid-hyperv.c
> @@ -308,6 +308,9 @@ static void mousevsc_on_receive(struct hv_device *device,
>  		memcpy(input_dev->input_buf, input_report->buffer, len);
>  		hid_input_report(input_dev->hid_device, HID_INPUT_REPORT,
>  				 input_dev->input_buf, len, 1);
> +
> +		pm_wakeup_event(&input_dev->device->device, 0);
> +
>  		break;
>  	default:
>  		pr_err("unsupported hid msg type - type %d len %d",
> @@ -549,6 +552,8 @@ static int mousevsc_probe(struct hv_device *device,
>  		goto probe_err2;
>  	}
>  
> +	device_init_wakeup(&device->device, true);
> +
>  	input_dev->connected = true;
>  	input_dev->init_complete = true;
>  
> @@ -571,6 +576,7 @@ static int mousevsc_remove(struct hv_device *dev)
>  {
>  	struct mousevsc_dev *input_dev = hv_get_drvdata(dev);
>  
> +	device_init_wakeup(&dev->device, false);
>  	vmbus_close(dev->channel);
>  	hid_hw_stop(input_dev->hid_device);
>  	hid_destroy_device(input_dev->hid_device);
> -- 
> 1.9.1
> 

-- 
Jiri Kosina
SUSE Labs
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