Unable to recognizer Deserializer Max9296 in i2cdetect

[charanya.rajasekaran]

Hello,

I am using NVIDIA Jetson AGX Xavier board along with a ConnectTech carrier board.
I am trying to set the register of deserializer Max9296 that is part of NVIDIA Jetson.
But I am not able to find the address of the deserializer using i2cdetect. We have used JetPack 4.6
The dmesg shows that there are no acknowledgement from many i2c buses. Could someone point me what I am missing here ?

part of dmesg:

“[183195.017708] tegra-i2c 3160000.i2c: no acknowledge from address 0x30
[183195.018307] tegra-i2c 3160000.i2c: no acknowledge from address 0x31
[183195.018839] tegra-i2c 3160000.i2c: no acknowledge from address 0x32
[183195.019330] tegra-i2c 3160000.i2c: no acknowledge from address 0x33
[183195.019938] tegra-i2c 3160000.i2c: no acknowledge from address 0x34
[183195.020761] tegra-i2c 3160000.i2c: no acknowledge from address 0x35
[183195.021157] tegra-i2c 3160000.i2c: no acknowledge from address 0x36
[183195.021553] tegra-i2c 3160000.i2c: no acknowledge from address 0x37
[183195.022264] tegra-i2c 3160000.i2c: no acknowledge from address 0x51
[183195.022676] tegra-i2c 3160000.i2c: no acknowledge from address 0x52
[183195.023055] tegra-i2c 3160000.i2c: no acknowledge from address 0x53
[183195.023728] tegra-i2c 3160000.i2c: no acknowledge from address 0x54
[183195.024123] tegra-i2c 3160000.i2c: no acknowledge from address 0x55
[183195.024571] tegra-i2c 3160000.i2c: no acknowledge from address 0x56
[183195.025019] tegra-i2c 3160000.i2c: no acknowledge from address 0x57
[183195.025457] tegra-i2c 3160000.i2c: no acknowledge from address 0x58
[183195.030082] tegra-i2c 3160000.i2c: no acknowledge from address 0x59
[183195.036971] tegra-i2c 3160000.i2c: no acknowledge from address 0x5a
[183195.043750] tegra-i2c 3160000.i2c: no acknowledge from address 0x5b
[183195.049147] tegra-i2c 3160000.i2c: no acknowledge from address 0x5c
[183195.056258] tegra-i2c 3160000.i2c: no acknowledge from address 0x5d
[183195.061993] tegra-i2c 3160000.i2c: no acknowledge from address 0x5e
[183195.068552] tegra-i2c 3160000.i2c: no acknowledge from address 0x5f”

[ShaneCCC]

The no acknowledge tell no device for this address that could be normally. You should check the slave address for the Max only to ignore any others slave address.