温柔一刀

FILE *fp;char buffer[80];fp = popen("cat /sys/class/mt_soc_codec_63xx/mt_codec_mic_gain", "r");fgets(buffer, sizeof(buffer), fp);ALOGD("%d %c", buffer[0],buffer[0]);pclose(fp);DegradedBGain = bu...

~/TOOLS/linux-2.6.32.2$ make menuconfig * Unable to find the ncurses libraries or the * required header files. * ‘make menuconfig’ requires the ncurses libraries.* Install ncurses (ncurses-devel) an

i2c-dev接口

什么是ioctl

linux