Hardware specific code running under Android

[steve-V8s]

Do android devices have a “bios” which sits under the OS or does the system address the hardware directly. I am guessing there is some sort of base hardware specific code as in interface between the hardware addresses and the OS. If not there would have to be some sort of standard defining where all the bits and bobs present themselves. Or is the OS device specific.

[robbieduncan]

There is a Hardware Abstraction Layer: https://source.android.com/devices/architecture/ha...

There is some good explanation of the architecture here: https://arstechnica.com/gadgets/2017/09/android-8-...

[steve-V8s]

Thank you for that.

[geeks]

Also worth noting that some manufacturers have an API level used to control features in the hardware from the OS, similar in process to drivers in Windows