ds2482ow
—
Driver for Maxim DS2482-100 and DS2482-800 IC2 to 1-Wire
bridge
ds2482ow* at iic? addr 0x18
ds2482ow* at iic? addr 0x19
ds2482ow* at iic? addr 0x1a
ds2482ow* at iic? addr 0x1b
ds2482ow* at iic? addr 0x1c DS2482-800 only
ds2482ow* at iic? addr 0x1d DS2482-800 only
ds2482ow* at iic? addr 0x1e DS2482-800 only
ds2482ow* at iic? addr 0x1f DS2482-800 only
onewire* at ds2482ow?
The ds2482ow
driver provides 1 or 8
onewire(4) busses via an I2C
interface. The ds2482ow
addr
argument selects the address at the
iic(4) bus. The chip generates all
of the needed 1-Wire pulses on its own and provides for the pullup needed on
the 1-Wire data line. The method that the chip uses for pullup can be changed
through sysctl(8) nodes.
The ds2482ow
driver first appeared in
NetBSD 11.0.
The DS2482 chip supports overdrive speed on a 1-Wire bus. This driver does not
support overdrive speed mode.