From: Guenter Roeck <linux@roeck-us.net>
To: Johan Dahlin <jdahlin@gmail.com>
Cc: linux-hwmon@vger.kernel.org, linux-kernel@vger.kernel.org,
Alwyn Kik <alwyn@kik.pw>,
Fabio Baltieri <fabio.baltieri@gmail.com>,
Hamza Mahfooz <someguy@effective-light.com>
Subject: Re: [PATCH v2 7/7] hwmon: (nct6683) Scale the +5V and +12V inputs of the ASRock B850 Steel Legend WiFi
Date: Sat, 14 Nov 2026 08:20:21 -0800 [thread overview]
Message-ID: <900c0952-7f04-41db-9b99-3be5c32f16ef@roeck-us.net> (raw)
In-Reply-To: <20261111082838.1418051-8-jdahlin@gmail.com>
On Wed, Nov 11, 2026 at 09:28:38AM +0100, Johan Dahlin wrote:
> The +5V and +12V rails reach the chip through resistor dividers, so they
> read as 1.70 V and 2.03 V while the UEFI setup shows 5.04 V and 12.19 V.
>
> Let the sensor table carry a divider ratio and apply it when reading the
> input, with ratios of 3 and 6 on this board. sysfs-interface.rst asks for
> such conversions in user space because dividers differ between boards.
> Here the board is identified by its customer ID, so the ratios are fixed.
>
> Signed-off-by: Johan Dahlin <jdahlin@gmail.com>
Again, this belongs into sensors3.conf.
Thanks,
Guenter
prev parent reply other threads:[~2026-11-14 16:20 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-11 8:28 [PATCH v2 0/7] hwmon: (nct6683) Fan control and sensor names for ASRock NCT6686D boards Johan Dahlin
2026-11-11 8:28 ` [PATCH v2 1/7] hwmon: (nct6683) Add customer ID for ASRock B850 Steel Legend WiFi Johan Dahlin
2026-11-14 16:07 ` Guenter Roeck
2026-11-11 8:28 ` [PATCH v2 2/7] hwmon: (nct6683) Restore automatic fan control on driver removal Johan Dahlin
2026-11-14 16:10 ` Guenter Roeck
2026-11-11 8:28 ` [PATCH v2 3/7] hwmon: (nct6683) Enable fan control on ASRock B850 Steel Legend WiFi Johan Dahlin
2026-11-14 16:12 ` Guenter Roeck
2026-11-11 8:28 ` [PATCH v2 4/7] hwmon: (nct6683) Enable fan control on ASRock BC-250 Johan Dahlin
2026-11-14 16:13 ` Guenter Roeck
2026-11-11 8:28 ` [PATCH v2 5/7] hwmon: (nct6683) Name the sensors of the ASRock B850 Steel Legend WiFi Johan Dahlin
2026-11-14 16:18 ` Guenter Roeck
2026-11-11 8:28 ` [PATCH v2 6/7] hwmon: (nct6683) Name the fan headers " Johan Dahlin
2026-11-14 16:19 ` Guenter Roeck
2026-11-11 8:28 ` [PATCH v2 7/7] hwmon: (nct6683) Scale the +5V and +12V inputs " Johan Dahlin
2026-11-14 16:20 ` Guenter Roeck [this message]
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