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- Kernel driver i2c-viapro
- Supported adapters:
- * VIA Technologies, Inc. VT82C596A/B
- Datasheet: Sometimes available at the VIA website
- * VIA Technologies, Inc. VT82C686A/B
- Datasheet: Sometimes available at the VIA website
- * VIA Technologies, Inc. VT8231, VT8233, VT8233A
- Datasheet: available on request from VIA
- * VIA Technologies, Inc. VT8235, VT8237R, VT8237A, VT8237S, VT8251
- Datasheet: available on request and under NDA from VIA
- * VIA Technologies, Inc. CX700
- Datasheet: available on request and under NDA from VIA
- Authors:
- Kyösti Mälkki <kmalkki@cc.hut.fi>,
- Mark D. Studebaker <mdsxyz123@yahoo.com>,
- Jean Delvare <khali@linux-fr.org>
- Module Parameters
- -----------------
- * force: int
- Forcibly enable the SMBus controller. DANGEROUS!
- * force_addr: int
- Forcibly enable the SMBus at the given address. EXTREMELY DANGEROUS!
- Description
- -----------
- i2c-viapro is a true SMBus host driver for motherboards with one of the
- supported VIA south bridges.
- Your lspci -n listing must show one of these :
- device 1106:3050 (VT82C596A function 3)
- device 1106:3051 (VT82C596B function 3)
- device 1106:3057 (VT82C686 function 4)
- device 1106:3074 (VT8233)
- device 1106:3147 (VT8233A)
- device 1106:8235 (VT8231 function 4)
- device 1106:3177 (VT8235)
- device 1106:3227 (VT8237R)
- device 1106:3337 (VT8237A)
- device 1106:3372 (VT8237S)
- device 1106:3287 (VT8251)
- device 1106:8324 (CX700)
- If none of these show up, you should look in the BIOS for settings like
- enable ACPI / SMBus or even USB.
- Except for the oldest chips (VT82C596A/B, VT82C686A and most probably
- VT8231), this driver supports I2C block transactions. Such transactions
- are mainly useful to read from and write to EEPROMs.
- The CX700 additionally appears to support SMBus PEC, although this driver
- doesn't implement it yet.
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