From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oleksandr Andrushchenko Subject: Re: [Xen-devel] [PATCH 1/2] xen, input: add xen-kbdfront module parameter for setting resolution Date: Mon, 10 Apr 2017 16:44:55 +0300 Message-ID: References: <20170321171905.31584-1-jgross@suse.com> <20170321171905.31584-2-jgross@suse.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail-wr0-f193.google.com ([209.85.128.193]:33633 "EHLO mail-wr0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752877AbdDJNpA (ORCPT ); Mon, 10 Apr 2017 09:45:00 -0400 In-Reply-To: <20170321171905.31584-2-jgross@suse.com> Sender: linux-input-owner@vger.kernel.org List-Id: linux-input@vger.kernel.org To: Juergen Gross , linux-kernel@vger.kernel.org, xen-devel@lists.xenproject.org, linux-input@vger.kernel.org Cc: dmitry.torokhov@gmail.com Hi, Juergen! On 03/21/2017 07:19 PM, Juergen Gross wrote: > Add a parameter for setting the resolution of xen-kbdfront in order to > be able to cope with a (virtual) frame buffer of arbitrary resolution. > > Signed-off-by: Juergen Gross > --- > drivers/input/misc/xen-kbdfront.c | 10 ++++++++-- > 1 file changed, 8 insertions(+), 2 deletions(-) > > diff --git a/drivers/input/misc/xen-kbdfront.c b/drivers/input/misc/xen-kbdfront.c > index 3900875..2df5678 100644 > --- a/drivers/input/misc/xen-kbdfront.c > +++ b/drivers/input/misc/xen-kbdfront.c > @@ -41,6 +41,12 @@ struct xenkbd_info { > char phys[32]; > }; > > +enum { KPARAM_WIDTH, KPARAM_HEIGHT, KPARAM_CNT }; > +static int size[KPARAM_CNT] = { XENFB_WIDTH, XENFB_HEIGHT }; > +module_param_array(size, int, NULL, 0444); is this by intention that you use 0444 here? It means read-only, thus one cannot change these, so what is the point of the module parameters then? > +MODULE_PARM_DESC(size, > + "Pointing device width, height in pixels (default 800,600)"); > + > static int xenkbd_remove(struct xenbus_device *); > static int xenkbd_connect_backend(struct xenbus_device *, struct xenkbd_info *); > static void xenkbd_disconnect_backend(struct xenkbd_info *); > @@ -174,8 +180,8 @@ static int xenkbd_probe(struct xenbus_device *dev, > > if (abs) { > __set_bit(EV_ABS, ptr->evbit); > - input_set_abs_params(ptr, ABS_X, 0, XENFB_WIDTH, 0, 0); > - input_set_abs_params(ptr, ABS_Y, 0, XENFB_HEIGHT, 0, 0); > + input_set_abs_params(ptr, ABS_X, 0, size[KPARAM_WIDTH], 0, 0); > + input_set_abs_params(ptr, ABS_Y, 0, size[KPARAM_HEIGHT], 0, 0); > } else { > input_set_capability(ptr, EV_REL, REL_X); > input_set_capability(ptr, EV_REL, REL_Y); Thank you, Oleksandr