Re: [Patch-V3 0/6] HID: Support for the Logitech G920 Wheel
From: Benjamin Tissoires
Date: Fri Nov 20 2015 - 03:05:47 EST
On Nov 19 2015 or thereabouts, Simon Wood wrote:
> Patch-V3 tweaked as per Benjamin's and Dmitry's requests.
If you just amended with my comments and Dmitry's, you can keep the
previous Rev-by while resending the series (as a general rule).
The series is still rev-by me.
> This series of patches provide input support for the Logitech G920 gaming wheel.
> This wheel is internally different from the other Logitech wheels; when first
> connected it is in X-Box mode and can instructed to switch to HID with a 'magic
> command' (1st patch). Once the wheel reconnects in HID mode it can communicate
> with the HID++ protocol, but using a 'very long' packet size (2nd patch).
> Basic input operation is possible with adustment of the 'range' (the amount that
> the wheel turns) controlled via the '/sys' interface, same concept as the G25/G27/etc.
> We also discovered that wheel uses some vendor specific pages, which confuse the
> HID system resulting in lots of additional axis reported. This is prevented by
> ignoring these pages (5th patch, thank you Elias).
> The future... as the internals of the wheel are considerably more 'capable' we
> are working on implementing Force Feedback using the forth-coming KLGD system.
> Simon Wood (6):
> INPUT: xpad: switch Logitech G920 Wheel into HID mode
> HID: hid-logitech-hidpp: Add support for very long packets
> HID: hid-logitech-hidpp: Add basic support for Logitech G920
> HID: hid-logitech-hidpp: Add range sysfs for Logitech G920
> HID: Add vendor specific usage pages for Logitech G920
> HID: hid-logitech-hidpp: G920 remove deadzones
> drivers/hid/hid-core.c | 1 +
> drivers/hid/hid-ids.h | 1 +
> drivers/hid/hid-input.c | 4 +
> drivers/hid/hid-logitech-hidpp.c | 288 +++++++++++++++++++++++++++++++++++----
> drivers/input/joystick/xpad.c | 16 +++
> include/linux/hid.h | 2 +
> 6 files changed, 285 insertions(+), 27 deletions(-)
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