General Purpose Input Output (通用输入/输出)简称为GPio,或总线扩展器,利用工业标准I2C、SMBus™或SPI™接口简化了I/O口的扩展。当微控制器或芯片组没有足够的 I/O端口,或当系统需要采用远端串行通信或控制时,GPio产品能够提供额外的控制和监视功能。
Gpio 2410 1. in \include\asm-arm\arch-s3c2410\hardware.h , I see * s3c2410_gpio_pullup(S3C2410_GPB0, 0); * s3c2410_gpio_pullup(S3C2410_GPE8, 0); */ extern void s3c2410_gpio_pullup(unsigned int pin, unsigned int to); things above make me think in write_gpio_bit(x,v), x shall be S3C2410_GPB0, but where is the hearder which includes this faction? Not in /io.h Not in the whole /arm-arch Not...
大家好,我听说LINUX中SUPER是提高本地应用程序权限的工具,谁能给我点关于这工具的资料呀,谢谢各们大侠了,等着急用呀,都上死火了...........