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Thu, 12 Nov 2026 21:39:49 -0800 (PST) Received: from localhost ([2a00:79e0:2ebe:8:48f1:7a0b:9bfb:4205]) by smtp.gmail.com with ESMTPSA id 5a478bee46e88-379559189e8sm3785444eec.11.2026.11.12.21.39.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 12 Nov 2026 21:39:49 -0800 (PST) Date: Thu, 12 Nov 2026 21:39:48 -0800 Message-ID: <5252f18157db7e26e27dd3ae2acb5b39@gmail.com> From: Dmitry Torokhov To: Gideon Heinz Cc: Jiri Kosina , Benjamin Tissoires , =?utf-8?q?Filipe_La=C3=ADns?= , Bastien Nocera , Hans de Goede , Edwin Velds , Stuart Hayhurst , Andrey Smirnov , linux-input@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: Re: [PATCH v2 00/33] HID: logitech-hidpp: G920 force-feedback fixes, rework, and cleanups In-Reply-To: References: <20261110-hid-logitech-hidpp-v2-0-30743e91d83b@gmail.com> <2f722967b6db0692d4dd4164aff39b62@gmail.com> X-Mailing-List: stable@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Content-Disposition: inline Hi Gideon, On Thu, Nov 12, 2026 at 03:50:37PM +0100, Gideon Heinz wrote: > Hi Dmitry, > > One more result, this time the combination you asked for: your input > core patch in the kernel, plus the v2 series without patch 22/33 as > the driver. > > Setup: CachyOS 7.3.4 kernel with only your "Input: destroy > force-feedback device on input unregistration" patch built in. On top > of that, hid-logitech-hidpp built out of tree against the 7.3.4 > headers from your v2 base (630059a5a632) with patches 1-21 and 23-33 > (7.3.4 already has a different G920 init fix, so I could not apply the > series to the in-tree driver directly). > > Same reproduction: fftest holding the G920 event node at the effect > prompt, rmmod hid_logitech_hidpp, then exiting fftest. Result: rmmod > returns in 98 ms, there are no "Failed to send command to device!" > lines at all, no hung task warning, and fftest exits normally with the > machine staying up. For comparison, your input patch with the stock > 7.3.4 driver took about 3 minutes and printed 12 failures, as in my > previous mail. > > If you would like me to add a Tested-by for the combination (input > patch + series without 22/33), please say so. Thank you again for all the thorough testing and for verifying both the input core patch and the updated hid-logitech-hidpp series! I have added your Tested-by to the input core patch and will merge it through the input tree myself. I will also give Benjamin and Jiri a chance to take a look at the hid-logitech-hidpp series, and with your permission I will add your Tested-by to those patches as well if I need to respin them (and drop patch 22/33 in favor of the input core change). Thanks. -- Dmitry