REG_COM9
{ REG_COM9, 0x18 }, /* 4x gain + magic rsvd bit */
{ REG_COM9, 0x48 }, /* 32x gain ceiling; 0x8 is reserved bit */
{ REG_COM9, 0x38 }, /* 16x gain ceiling; 0x8 is reserved bit */
{ REG_COM9, 0x38 }, /* 16x gain ceiling; 0x8 is reserved bit */
{ REG_COM9, 0x38 },
{ REG_COM9, 0x3a }, /* Gain ceiling 16x */