snd_es1688_dsp_command
snd_es1688_dsp_command(chip, 0xc6); /* enable extended mode */
snd_es1688_dsp_command(chip, 0xe7); /* return identification */
snd_es1688_dsp_command(chip, ES1688_DSP_CMD_SPKON);
snd_es1688_dsp_command(chip, ES1688_DSP_CMD_SPKOFF);
if (!snd_es1688_dsp_command(chip, reg))
return snd_es1688_dsp_command(chip, data);
if (!snd_es1688_dsp_command(chip, 0xc0))
if (!snd_es1688_dsp_command(chip, reg))