snd_opl4_read_memory
EXPORT_SYMBOL(snd_opl4_read_memory);
void snd_opl4_read_memory(struct snd_opl4 *opl4, char *buf, int offset, int size);
snd_opl4_read_memory(opl4, buf, pos, count);
snd_opl4_read_memory(opl4, buf, 0x001200, 15);
snd_opl4_read_memory(opl4, buf, 0x1ffffe, 2);