Subject: kernel memory typedefs
To: None <tech-kern@NetBSD.ORG>
From: Juergen Hannken-Illjes <>
List: tech-kern
Date: 09/10/1995 14:51:18
while playing a little with I386 ISA DMA I feel confused about correct
memory types. Up to now I found the following types in -current sources:

caddr_t (char *), vm_offset_t (unsigned long), vm_size_t (unsigned long) and
u_long (unsigned long).

What are the correct types for virtual adresses, physical adresses and sizes
of regions in virtual or physical memory.

Juergen Hannken-Illjes - - TU Braunschweig (W Germany)