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32 .Nd Intel(R) fourth generation mobile CPU integrated I2C SMBus driver
34 To compile this driver into the kernel, place the following lines into
35 the kernel configuration file:
36 .Bd -ragged -offset indent
41 Alternatively, to load the driver as a module at boot time, place the following line in
43 .Bd -literal -offset indent
49 driver provides access to peripherals attached to an I2C SMB controller.
51 supports the SMBus controller found in fourth generation Intel(R) Core(TM)
52 processors based on the mobile U-processor line for intelligent systems.
53 This includes the i7-4650U, i5-4300U, i3-4010U, and 2980U.
57 variables are available:
58 .Bl -tag -width "debug.ig4_dump"
60 Setting this to a non-zero value dumps controller registers to console and
62 The sysctl resets to zero immediately.
71 driver was written for DragonFly BSD by
73 and subsequently ported to
76 .An Michael Gmelin Aq Mt freebsd@grem.de .
78 This manual page was written by
79 .An Michael Gmelin Aq Mt freebsd@grem.de .