RE: [PATCH 1/1] Drivers: hid: hid-hyperv: Implement a stub raw_request() entry point

From: KY Srinivasan
Date: Sat Mar 29 2014 - 01:06:48 EST



> -----Original Message-----
> From: Jiri Kosina [mailto:jkosina@xxxxxxx]
> Sent: Friday, March 28, 2014 6:43 PM
> To: KY Srinivasan
> Cc: gregkh@xxxxxxx; linux-kernel@xxxxxxxxxxxxxxx;
> devel@xxxxxxxxxxxxxxxxxxxxxx; ohering@xxxxxxxx;
> benjamin.tissoires@xxxxxxxxxx; dh.herrmann@xxxxxxxxx
> Subject: Re: [PATCH 1/1] Drivers: hid: hid-hyperv: Implement a stub
> raw_request() entry point
>
> On Fri, 28 Mar 2014, K. Y. Srinivasan wrote:
>
> > commit 3c86726cfe38952f0366f86acfbbb025813ec1c2
> > Author: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx>
> > Date: Thu Feb 20 15:24:49 2014 -0500
> >
> > HID: make .raw_request mandatory
> >
> > SET_REPORT and GET_REPORT are mandatory in the HID specification.
> > Make the corresponding API in hid-core mandatory too, which removes
> the
> > need to test against it in some various places.
> >
> > Signed-off-by: Benjamin Tissoires <benjamin.tissoires@xxxxxxxxxx>
> > Reviewed-by: David Herrmann <dh.herrmann@xxxxxxxxx>
> > Signed-off-by: Jiri Kosina <jkosina@xxxxxxx>
> >
> > Made .raw_request mandatory and broke the Hyper-V mouse driver. This
> > patch fixes the problem.
> >
> > Signed-off-by: K. Y. Srinivasan <kys@xxxxxxxxxxxxx>
> > ---
> > drivers/hid/hid-hyperv.c | 10 ++++++++++
> > 1 files changed, 10 insertions(+), 0 deletions(-)
> >
> > diff --git a/drivers/hid/hid-hyperv.c b/drivers/hid/hid-hyperv.c index
> > c24908f..89a9234 100644
> > --- a/drivers/hid/hid-hyperv.c
> > +++ b/drivers/hid/hid-hyperv.c
> > @@ -460,12 +460,22 @@ static void mousevsc_hid_stop(struct hid_device
> > *hid) { }
> >
> > +static int mousevsc_hid_raw_request(struct hid_device *hid,
> > + unsigned char report_num,
> > + __u8 buf, size_t len,
>
> This should be __u8 *buf. I have fixed that and applied.

Thanks Jiri,

K. Y
>
> --
> Jiri Kosina
> SUSE Labs
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