Openwrt/target/linux/brcm47xx-2.6/files/include/asm-generic/gpio.h

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#ifndef _ASM_GENERIC_GPIO_H
#define _ASM_GENERIC_GPIO_H
/* platforms that don't directly support access to GPIOs through I2C, SPI,
* or other blocking infrastructure can use these wrappers.
*/
static inline int gpio_cansleep(unsigned gpio)
{
return 0;
}
static inline int gpio_get_value_cansleep(unsigned gpio)
{
might_sleep();
return gpio_get_value(gpio);
}
static inline void gpio_set_value_cansleep(unsigned gpio, int value)
{
might_sleep();
gpio_set_value(gpio, value);
}
#endif /* _ASM_GENERIC_GPIO_H */