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diff --git a/Documentation/i2c/busses/i2c-via.rst b/Documentation/i2c/busses/i2c-via.rst new file mode 100644 index 000000000..846aa17d8 --- /dev/null +++ b/Documentation/i2c/busses/i2c-via.rst @@ -0,0 +1,40 @@ +===================== +Kernel driver i2c-via +===================== + +Supported adapters: + * VIA Technologies, InC. VT82C586B + Datasheet: Publicly available at the VIA website + +Author: Kyösti Mälkki <kmalkki@cc.hut.fi> + +Description +----------- + +i2c-via is an i2c bus driver for motherboards with VIA chipset. + +The following VIA pci chipsets are supported: + - MVP3, VP3, VP2/97, VPX/97 + - others with South bridge VT82C586B + +Your ``lspci`` listing must show this :: + + Bridge: VIA Technologies, Inc. VT82C586B ACPI (rev 10) + +Problems? +--------- + + Q: + You have VT82C586B on the motherboard, but not in the listing. + + A: + Go to your BIOS setup, section PCI devices or similar. + Turn USB support on, and try again. + + Q: + No error messages, but still i2c doesn't seem to work. + + A: + This can happen. This driver uses the pins VIA recommends in their + datasheets, but there are several ways the motherboard manufacturer + can actually wire the lines. |