Documentation / w1 / masters / w1-gpio
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Based on kernel version 3.9. Page generated on 2013-05-02 23:17 EST.
1 Kernel driver w1-gpio 2 ===================== 3 4 Author: Ville Syrjala <syrjala@sci.fi> 5 6 7 Description 8 ----------- 9 10 GPIO 1-wire bus master driver. The driver uses the GPIO API to control the 11 wire and the GPIO pin can be specified using platform data. 12 13 14 Example (mach-at91) 15 ------------------- 16 17 #include <linux/w1-gpio.h> 18 19 static struct w1_gpio_platform_data foo_w1_gpio_pdata = { 20 .pin = AT91_PIN_PB20, 21 .is_open_drain = 1, 22 }; 23 24 static struct platform_device foo_w1_device = { 25 .name = "w1-gpio", 26 .id = -1, 27 .dev.platform_data = &foo_w1_gpio_pdata, 28 }; 29 30 ... 31 at91_set_GPIO_periph(foo_w1_gpio_pdata.pin, 1); 32 at91_set_multi_drive(foo_w1_gpio_pdata.pin, 1); 33 platform_device_register(&foo_w1_device);
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