[sane-devel] Gl646 backend help

[Parag N(पराग़)]

Hello,
      I am not getting the commnets inerted in code for genesys_gl646
file. what i am chekcing is first gl646_init_regs function which has
lines===>

/* ST12: 0x01 0x20 0x02 0x30 0x03 0x1f 0x04 0x13 0x05 0x10 */
/* ST24: 0x01 0x20 0x02 0x30 0x03 0x1f 0x04 0x13 0x05 0x50 */
  dev->reg[reg_0x01].value = 0x20 /*0x22 */ ;   /* enable shading,
CCD, color, 1M */
  dev->reg[reg_0x02].value = 0x30 /*0x38 */ ;   /* auto home,
one-table-move, full step */
  if (dev->model->motor_type == MOTOR_5345)
    dev->reg[reg_0x02].value |= 0x01;   /* half-step */
  dev->reg[reg_0x03].value = 0x1f /*0x17 */ ;   /* lamp on */
  dev->reg[reg_0x04].value = 0x13 /*0x03 */ ;   /* 8 bits data, 16
bits A/D, color, Wolfson fe *//* todo: according to spec, 0x0 is
reserved? */

  dev->reg[reg_0x05].value = 0x00;      /* 12 bits gamma, disable
gamma, 24 clocks/pixel */

           i want explanation about this. in above code theres a line
dev->reg[reg_0x01].value = 0x20 /*0x22 */ ;
that states reg01 has 0x20 val with commented value 0x22. so what is
the meaning of those commented values?
regards,
Parag.