The sound skipping also exist in the alsa-driver-1.0.24. The sound card is CMI8738. The alsa-driver-1.0.18a have no problem.But I can't build it on kernel 3.x.The error info:hwdep.c: In function ‘snd_hwdep_ioctl_old’:hwdep.c:322:2: warning: implicit declaration of function ‘unlock_kernel’hwdep.c:324:2: warning: implicit declaration of function ‘lock_kernel’hwdep.c: At top level:hwdep.c:348:2: error: unknown field ‘ioctl’ specified in initializerhwdep.c:348:2: warning: initialization from incompatible pointer typemake[1]: *** [hwdep.o] Error 1Help me, please.Thank you in advance.