From:   Tero Kristo <tero.kristo@linux.intel.com>
To:     linux-input@vger.kernel.org, benjamin.tissoires@redhat.com,
        jikos@kernel.org, mika.westerberg@linux.intel.com,
        tero.kristo@linux.intel.com
Cc:     linux-kernel@vger.kernel.org, dmitry.torokhov@gmail.com,
        peter.hutterer@who-t.net
Subject: [RFCv2 0/8] USI stylus support series
Date:   Fri, 26 Nov 2021 15:01:33 +0200
Message-Id: <20211126130141.1811848-1-tero.kristo@linux.intel.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

Hi,

This series is an update based on comments from Benjamin. What is done
is this series is to ditch the separate hid-driver for USI, and add the
generic support to core layers. This part basically brings the support
for providing USI events, without programmability (patches 1-6).

Additionally, a HID-BPF based sample is provided which can be used to
program / query pen parameters in comparison to the old driver level
implementation (patches 7-8, patch #8 is an incremental change on top of
patch #7 which just converts the fifo to socket so that the client can
also get results back from the server.)

The whole series is based on top of Benjamin's hid-bpf support work, and
I've pushed a branch at [1] with a series that works and brings in
the dependency. There are also a few separate patches in this series to
fix the problems I found from Benjamin's initial work for hid-bpf; I
wasn't able to get things working without those. The branch is also
based on top of 5.16-rc2 which required some extra changes to the
patches from Benjamin.

-Tero

[1] https://github.com/t-kristo/linux/tree/usi-5.16-rfc-v2-bpf