Android Audio代码分析8 - AudioHardwareALSA::openOutputStream函数(下)
结构体alsa_device_t的定义:structalsa_device_t{hw_device_tcommon;status_t(*init)(alsa_device_t*,ALSAHandleList&);status_t(*open)(alsa_handle_t*,uint32_t,int);status_t(*close)(alsa_handle_t*);status_t(*route)