Commit | Line | Data |
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ad8dc96e VS |
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); |