> Why does a uthum(4) unit show up as two devices? The sensors are > only attached to the second one. > > uhidev2 at uhub2 port 2 configuration 1 interface 0 "Ten X Technology, Inc. > TEMPer sensor" rev 1.10/1.50 addr 4 > uhidev2: iclass 3/1 > uthum0 at uhidev2 > uhidev3 at uhub2 port 2 configuration 1 interface 1 "Ten X Technology, Inc. > TEMPer sensor" rev 1.10/1.50 addr 4 > uhidev3: iclass 3/0 > uthum1 at uhidev3 > > $ sysctl hw.sensors | grep uthum > hw.sensors.uthum1.temp0=22.31 degC (temp) > hw.sensors.uthum1.percent0=41.98% (humidity)
There are two uhid's on the device. The first one is a eeprom that says which type of sensor it is. Not connecting it as a device is more difficult than connecting it.
