MAX7319, MAX7320-7327 I2C Port Expanders
modulename: max732x.ko
and/orgpio-max732x.ko
configname: CONFIG_GPIO_MAX732X
Linux Kernel Configuration
└─>Device Drivers
└─>GPIO Support
└─>I2C support
└─>MAX7319, MAX7320-7327 I2C Port Expanders
In linux kernel since version 2.6.27 (release Date: 2008-10-09)
Say yes here to support the MAX7319, MAX7320-7327 series of I2C
Port Expanders. Each IO port on these chips has a fixed role of
Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
Input and Output (designed by 'P'). The combinations are listed
below:
8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
max7322 (4I4O), max7323 (4P4O)
16 bits: max7324 (8I8O), max7325 (8P8O),
max7326 (4I12O), max7327 (4P12O)
Board setup code must specify the model to use, and the start
number for these GPIOs.
Port Expanders. Each IO port on these chips has a fixed role of
Input (designated by 'I'), Push-Pull Output ('O'), or Open-Drain
Input and Output (designed by 'P'). The combinations are listed
below:
8 bits: max7319 (8I), max7320 (8O), max7321 (8P),
max7322 (4I4O), max7323 (4P4O)
16 bits: max7324 (8I8O), max7325 (8P8O),
max7326 (4I12O), max7327 (4P12O)
Board setup code must specify the model to use, and the start
number for these GPIOs.