taglinefilesource code
aux_write_ack517drivers/char/psaux.caux_write_ack(AUX_SET_SAMPLE);
aux_write_ack518drivers/char/psaux.caux_write_ack(100);      /* 100 samples/sec */
aux_write_ack519drivers/char/psaux.caux_write_ack(AUX_SET_RES);
aux_write_ack520drivers/char/psaux.caux_write_ack(3);      /* 8 counts per mm */
aux_write_ack521drivers/char/psaux.caux_write_ack(AUX_SET_SCALE21);    /* 2:1 scaling */