Re: [PATCH 0/3] hid: Enable report fixup on rebind

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On Sun, 22 Apr 2012, Henrik Rydberg wrote:

> This patchset contains a resolution to the problem with
> driver-specific modification of the report descriptor. The core of the
> problem lies with the dual semantics of hid_parse_report(), which is
> therefore split into two functions. As a consequence, the hid core can
> handle the rebind case internally, with no changes to the
> drivers. Out-of-tree drivers will work fine as long as they operate in
> the same way as the in-kernel drivers.
> 
> The first two patches are bug fixes found in the process. I am hoping
> for some test feedback on those. The third patch is the main one.

Hi Henrik,

thanks a lot for looking into this. I will look into the patches in more 
detail tomorrow. I am now just adding Nikolai to CC, as he was the first 
one to bring this up and actually has a driver that exposed the fact that 
just freeing/reinstatiating rdesc is not enough.

Thanks!

> 
> Henrik Rydberg (3):
>   hid-hyperv: Do not use hid_parse_report() directly
>   hid-logitech: Collect report descriptors before sending
>   hid: Handle driver-specific device descriptor in core
> 
>  drivers/hid/hid-core.c        |  112 +++++++++++++++++++++++++++++++++--------
>  drivers/hid/hid-hyperv.c      |   14 +++++-
>  drivers/hid/hid-logitech-dj.c |   71 +++++++++++---------------
>  include/linux/hid.h           |   14 ++----
>  4 files changed, 135 insertions(+), 76 deletions(-)
> 
> -- 
> 1.7.10
> 

-- 
Jiri Kosina
SUSE Labs
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