ESS_CMD_SETFORMAT  750 sound/pci/es1938.c         snd_es1938_write(chip, ESS_CMD_SETFORMAT, u ? 0x80 : 0x00);
ESS_CMD_SETFORMAT  751 sound/pci/es1938.c         snd_es1938_write(chip, ESS_CMD_SETFORMAT, u ? 0x51 : 0x71);