| Ville Syrjala | ad8dc96 | 2008-02-06 01:39:01 -0800 | [diff] [blame] | 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); |