1$NetBSD: README,v 1.2 1994/10/26 09:08:31 cgd Exp $ 2 3NetBSD/sun3 supports the following busses: 4 5Bus: 6obio - Devices on the motherboard, accessed by having their "registers" 7 mapped into the kernel's virtual address space 8obctl - Devices on the motherboard accessible only via the 'CONTROL' space, 9 and supporting instructions on the m68k. 10obmem - Devices on the motherboard that are mapped into main memory 11 by the hardware. Only true of some framebuffers. 12mainbus - An imaginary bus on which obio, obctl, obmem, and the prom device 13 all reside. 14 15Devices supported: 16 17'obio' Bus: 18Device Type Description 19--------------------------------------------------------------------------- 20zs CHAR zilog 8530 serial ports; used for serial ports, keybd, mouse 21le IFNET lance ethernet driver 22 23'obctl' Bus: 24Device Type Description 25--------------------------------------------------------------------------- 26idprom CHAR makes idprom contents accessible in user-space 27 28 29The 'prom' device is just wierd as it isn't a real device, but enough 30wrapping so that the prom input/output routines can be used to make 31the prom's idea of the console both a tty, and a console in the netbsd 32sense. 33 34prom CHAR prom-based tty and console support 35 36