when setting the state of lines these should contain57* the desired target state58*/59structgpiohandle_data {60unsignedcharvalues[GPIOHANDLES_MAX];61};6263#defineGPIO_GET_CHIPINFO_IOCTL 2151986177//_IOR(0xB4,
ret = ioctl(fd, GPIO_GET_CHIPINFO_IOCTL, &cinfo); if (ret < 0) { printf("ERROR get chip info ret=%d\n", ret); return -1; } printf("GPIO chip: %s, \"%s\", %u GPIO lines\n", cinfo.name, cinfo.label, cinfo.lines); ret = ioctl(fd, GPIO_GET_LINEINFO_IOCTL, &linfo...
int ret = ioctl(Fd, GPIO_GET_CHIPINFO_IOCTL, &chipinfo); if (0==ret) { if (wiringPiDebug) { printf ("%s: name=%s, label=%s, lines=%u\n", szGPIOChip, chipinfo.name, chipinfo.label, chipinfo.lines) ; } int chipOK = 1; if (label[0]!='\0' && NULL==strstr(chipinfo.label...
ioctl GPIO_GET_CHIPINFO_IOCTL gpio: add userspace ABI for GPIO line information commit 521a2ad6f862a [GIT PULL] GPIO bulk changes for kernel v4.6 (Mar 17, 2016) ioctl GPIO_GET_LINEINFO_IOCTL gpio: userspace ABI for reading/writing GPIO lines commit: d7c51b47ac11e [GIT PULL] bulk...
然后,我们调用ioctl函数,传入GPIO_GET_LINEHANDLE_IOCTL命令和gpiohandle_request结构体。如果导出成功,ioctl函数将返回0,否则返回-1。 4.3. 设置GPIO方向和值 在导出GPIO之后,可以使用gpiohandle_data结构体来设置GPIO的方向和值。例如,要将GPIO8设置为输出并输出高电平,可以使用以下代码: ...
EMIO即Extensible Multiply I/O，MIO分配在bank0（32bit，3.3V）和bank1（32bit，1.8V），EMIO分配...
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ret = ioctl(fd, GPIO_GET_CHIPINFO_IOCTL, &cinfo); if (ret < 0) { printf("ERROR get chip info ret=%d\n", ret); return -1; } printf("GPIO chip: %s, \"%s\", %u GPIO lines\n", cinfo.name, cinfo.label, cinfo.lines); ret = ioctl(fd, GPIO_GET_LINEINFO_IOCTL, &linfo...
Updated lgGpioGetChipInfo information Added lgGpioGetLineInfo method Added lgLineInfo_p structure uses lgLineInfoFlags method Wrote lgLineInfoFlags method to return string from bits Added lgGpioGetMode uses lgLineInfoFlags method Added lgGpioSetUser method Wrote lgGPIOUser structure Added lgTxBusy Ad...
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