摘要：
如果（（err=snd_pcm_hw_params_set_access（pTempDev-˃pcm，pHwParams，snd_pcm_access_RW_INTERLEAVED））˂0）｛DPERROR（（“源跳数：Cannotsetaccesstype:%s”，snd_strerror（err）））；return-1；/**PCMaccessty
if ((err = snd_pcm_hw_params_set_access(pTempDev->pcm, pHwParams, SND_PCM_ACCESS_RW_INTERLEAVED)) < 0) {
DPERROR(("Source hops: Cannot set access type: %s ", snd_strerror(err)));
return -1;
/** PCM access type */ typedef enum _snd_pcm_access { /** mmap access with simple interleaved channels */ SND_PCM_ACCESS_MMAP_INTERLEAVED = 0, /** mmap access with simple non interleaved channels */ SND_PCM_ACCESS_MMAP_NONINTERLEAVED, /** mmap access with complex placement */ SND_PCM_ACCESS_MMAP_COMPLEX, /** snd_pcm_readi/snd_pcm_writei access */ SND_PCM_ACCESS_RW_INTERLEAVED, /** snd_pcm_readn/snd_pcm_writen access */ SND_PCM_ACCESS_RW_NONINTERLEAVED, SND_PCM_ACCESS_LAST = SND_PCM_ACCESS_RW_NONINTERLEAVED } snd_pcm_access_t;
