From: Vasileios Amoiridis <vassilisamir@gmail.com>
To: ang.iglesiasg@gmail.com
Cc: ajarizzo@gmail.com, jic23@kernel.org, lars@metafoo.de,
linux-iio@vger.kernel.org
Subject: Replying to: [PATCH] iio pressure: bmp280: Fix BMP580 temperature reading
Date: Thu, 2 May 2024 19:16:16 +0200 [thread overview]
Message-ID: <20240502171616.154085-1-vassilisamir@gmail.com> (raw)
In-Reply-To: <043f2be49df3c11152aaf32fc5467ed43fd59faa.camel@gmail.com>
Hi Angel!
Indeed the datasheet says that the pressure is a signed value. But this comes
in contrast with 2 things:
1) The BMP58x sensor does not have a compensation function so the value from the
sensor is a pressure value just in different unit from the one reported by IIO.
And the sensor is able to report in between 30-125kPa according to the
datasheet which are both positive values so it makes more sense to be an
unsigned value.
2) According to the BMP5 sensor API [1] provided by Bosch, the pressure is
declared as an unsigned value.
So, what should we trust?
[1]: https://github.com/boschsensortec/BMP5_SensorAPI/blob/master/bmp5_defs.h#L895
next prev parent reply other threads:[~2024-05-02 17:16 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-25 6:22 [PATCH] iio: pressure: bmp280: Fix BMP580 temperature reading Adam Rizkalla
2024-04-28 13:40 ` Jonathan Cameron
2024-05-02 13:05 ` Replying to: " Vasileios Amoiridis
2024-05-02 15:44 ` Angel Iglesias
2024-05-02 17:16 ` Vasileios Amoiridis [this message]
2024-05-02 18:15 ` Replying to: [PATCH] iio " Adam Rizkalla
2024-05-03 7:13 ` Angel Iglesias
2024-05-05 18:02 ` Jonathan Cameron
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