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How to increase <strong>i2c</strong> limit by disabling bam mode - 96Boards SoM Carrier Board - 96Boards Forum

How to increase i2c limit by disabling bam mode

Products Support 96Boards SoM Carrier Board
#1

Hi Team,

We have a carrier board with SD820 SOM. In normal BAM mode the i2c transfers 64 bytes maximum.
We are referring to a document which asks us to disable as below in the device tree to increase the limit :
“qcom,bam-disable;”

after disabling bam mode, the documents says we need to do the below configuration in sysfs :

“echo 1 > /sys/kernel/debug/<device_address>.i2c/xfer-force-mode”

but we are not able to find the file “<device_address>.i2c/xfer-force-mode”

Please let us know how we can increase the i2c transfer limit and how to test it.

Regards,
Shiva Shankar K.

#2

Can I know why is this not happening?

@Loic