From 76cb841cb886eef6b3bee341a2266c76578724ad Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 6 May 2024 03:02:30 +0200 Subject: Adding upstream version 4.19.249. Signed-off-by: Daniel Baumann --- Documentation/i2c/busses/i2c-via | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+) create mode 100644 Documentation/i2c/busses/i2c-via (limited to 'Documentation/i2c/busses/i2c-via') diff --git a/Documentation/i2c/busses/i2c-via b/Documentation/i2c/busses/i2c-via new file mode 100644 index 000000000..343870661 --- /dev/null +++ b/Documentation/i2c/busses/i2c-via @@ -0,0 +1,34 @@ +Kernel driver i2c-via + +Supported adapters: + * VIA Technologies, InC. VT82C586B + Datasheet: Publicly available at the VIA website + +Author: Kyösti Mälkki + +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. + -- cgit v1.2.3