chn_reset
err = chn_reset(c, c->format, c->speed);
err = chn_reset(c, bestformat, bestspeed);
err = chn_reset(c, bestformat, bestspeed);
chn_reset(c, bestformat, bestspeed);
int chn_reset(struct pcm_channel *c, u_int32_t fmt, u_int32_t spd);
if ((err = chn_reset(*ch, (*ch)->format, (*ch)->speed)) != 0)
chn_reset(rdch, 0, 0);
chn_reset(wrch, 0, 0);
ret = chn_reset(c, c->format, newspd);
ret = chn_reset(c, newfmt, c->speed);
if ((ret = chn_reset(parent, vchanfmt, vchanspd)) != 0)
chn_reset(parent, parent->format, parent->speed);