HYTHYGTEMP(4) | Device Drivers Manual | HYTHYGTEMP(4) |
hythygtemp
—
Driver for IST-AG HYT-221/271/939 sensor chip via I2C
bus
hythygtemp* at iic? addr 0x28
The hythygtemp
driver provides
measurements from the HYT-221/271/939 humidity/temperature sensors via the
envsys(4) framework. The
hythygtemp
addr argument
selects the address at the iic(4)
bus. The sampling interval can be changed through the
sysctl(8) node
hw.hythygtemp0.interval
.
The sensor chips can be reconfigured to respond to other addresses than the default value of 0x28 by external utilities, like for example the pkgsrc/sysutils/hytctl package.
The following sysctl(3) variables are provided:
The hythygtemp
driver first appeared in
NetBSD 7.0.
The hythygtemp
driver was written by
Frank Kardel
<kardel@NetBSD.org>
and Frank Wille ⟨phx@NetBSD.org⟩.
September 9, 2015 | NetBSD 10.99 |