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All Drivers are modules. All modules are not drivers.

Modules can be inserted at runtime. Modules/Drivers can be statically compiled along with the kernel also.

Typical module init has

module_init(init_fn); init_fn() { /* some code */ } 

The same module can be made a driver

module_init(init_fn); init_fn() { device_register(&device); /* some code */ } 

All Drivers are modules. Not all modules are drivers.

Modules can be inserted at runtime. Modules/Drivers can be statically compiled along with the kernel also.

Typical module init has

module_init(init_fn); init_fn() { /* some code */ } 

The same module can be made a driver

module_init(init_fn); init_fn() { device_register(&device); /* some code */ } 

All Drivers are modules. Not all modules are not drivers.

Modules can be inserted at runtime. Modules/Drivers can be statically compiled along with the kernel also.

Typical module init has

module_init(init_fn); init_fn() { /* some code */ } 

The same module can be made a driver

module_init(init_fn); init_fn() { device_register(&device); /* some code */ } 

All Drivers are modules. All modules are not drivers.

Modules can be inserted at runtime. Modules/Drivers can be statically compiled along with the kernel also.

Typical module init has

module_init(init_fn); init_fn() { /* some code */ } 

The same module can be made a driver

module_init(init_fn); init_fn() { device_register(&device); /* some code */ } 

All Drivers are modules. All modules are not drivers.
Modules can be inserted at runtime. Modules/Drivers are can be statically compiled along with the kernel also.

Typical module init has

module_init(init_fn); init_fn() { } 

The same module can be made a driver

module_init(init_fn); init_fn() { device_register(&device); } 

All Drivers are modules. Not all modules are not drivers.

Modules can be inserted at runtime. Modules/Drivers can be statically compiled along with the kernel also.

Typical module init has

module_init(init_fn); init_fn() {  /* some code */ } 

The same module can be made a driver

module_init(init_fn); init_fn() { device_register(&device); /* some code */ }