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8750197f0e
The big i2c-viapro SMBus driver update which went into 2.6.14-git1 introduced a few minor issues. Nothing critical, but I would like a few adjustments to be merged in to fix the following problems: * VIA should not be spelled Via. * Frodo Looijaard and Philip Edelbrock did not write the i2c-viapro driver. * When debugging is disabled, half of messages would be logged. * Drop an unneeded masking. * Some port reads can be avoided now that the transaction size is passed as a parameter to vt596_transaction(). * SMBus Receive Byte transactions are used for probing too (for EEPROMs), so hide errors on these too. Signed-off-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
49 lines
1.4 KiB
Plaintext
49 lines
1.4 KiB
Plaintext
Kernel driver i2c-viapro
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Supported adapters:
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* VIA Technologies, Inc. VT82C596A/B
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Datasheet: Sometimes available at the VIA website
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* VIA Technologies, Inc. VT82C686A/B
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Datasheet: Sometimes available at the VIA website
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* VIA Technologies, Inc. VT8231, VT8233, VT8233A, VT8235, VT8237R
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Datasheet: available on request from VIA
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Authors:
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Kyösti Mälkki <kmalkki@cc.hut.fi>,
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Mark D. Studebaker <mdsxyz123@yahoo.com>,
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Jean Delvare <khali@linux-fr.org>
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Module Parameters
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-----------------
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* force: int
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Forcibly enable the SMBus controller. DANGEROUS!
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* force_addr: int
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Forcibly enable the SMBus at the given address. EXTREMELY DANGEROUS!
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Description
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-----------
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i2c-viapro is a true SMBus host driver for motherboards with one of the
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supported VIA south bridges.
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Your lspci -n listing must show one of these :
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device 1106:3050 (VT82C596A function 3)
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device 1106:3051 (VT82C596B function 3)
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device 1106:3057 (VT82C686 function 4)
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device 1106:3074 (VT8233)
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device 1106:3147 (VT8233A)
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device 1106:8235 (VT8231 function 4)
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device 1106:3177 (VT8235)
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device 1106:3227 (VT8237R)
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If none of these show up, you should look in the BIOS for settings like
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enable ACPI / SMBus or even USB.
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Except for the oldest chips (VT82C596A/B, VT82C686A and most probably
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VT8231), this driver supports I2C block transactions. Such transactions
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are mainly useful to read from and write to EEPROMs.
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