| Kernel driver w1-gpio |
| ===================== |
| |
| Author: Ville Syrjala <syrjala@sci.fi> |
| |
| |
| Description |
| ----------- |
| |
| GPIO 1-wire bus master driver. The driver uses the GPIO API to control the |
| wire and the GPIO pin can be specified using platform data. |
| |
| |
| Example (mach-at91) |
| ------------------- |
| |
| #include <linux/w1-gpio.h> |
| |
| static struct w1_gpio_platform_data foo_w1_gpio_pdata = { |
| .pin = AT91_PIN_PB20, |
| .is_open_drain = 1, |
| }; |
| |
| static struct platform_device foo_w1_device = { |
| .name = "w1-gpio", |
| .id = -1, |
| .dev.platform_data = &foo_w1_gpio_pdata, |
| }; |
| |
| ... |
| at91_set_GPIO_periph(foo_w1_gpio_pdata.pin, 1); |
| at91_set_multi_drive(foo_w1_gpio_pdata.pin, 1); |
| platform_device_register(&foo_w1_device); |