snd_echo_pcm_output_gain 1040 sound/pci/echoaudio/echoaudio.c static const struct snd_kcontrol_new snd_echo_pcm_output_gain = { snd_echo_pcm_output_gain 2059 sound/pci/echoaudio/echoaudio.c snd_ctl_new1(&snd_echo_pcm_output_gain, chip));