snd_util_mem_avail
int snd_util_mem_avail(struct snd_util_memhdr *hdr);
snd_iprintf(buffer, "Memory Free : %d\n", snd_util_mem_avail(trident->tlb.memhdr));
int size = snd_util_mem_avail(emu->memhdr);
return snd_util_mem_avail(emu->memhdr);
snd_iprintf(buf, "Memory Available: %d\n", snd_util_mem_avail(emu->memhdr));
EXPORT_SYMBOL(snd_util_mem_avail);