README revision 1.1
11.1Sglass <$Revision: 1.1 $> 21.1Sglass 31.1SglassNetBSD/sun3 supports the following busses: 41.1Sglass 51.1SglassBus: 61.1Sglassobio - Devices on the motherboard, accessed by having their "registers" 71.1Sglass mapped into the kernel's virtual address space 81.1Sglassobctl - Devices on the motherboard accessible only via the 'CONTROL' space, 91.1Sglass and supporting instructions on the m68k. 101.1Sglassobmem - Devices on the motherboard that are mapped into main memory 111.1Sglass by the hardware. Only true of some framebuffers. 121.1Sglassmainbus - An imaginary bus on which obio, obctl, obmem, and the prom device 131.1Sglass all reside. 141.1Sglass 151.1SglassDevices supported: 161.1Sglass 171.1Sglass'obio' Bus: 181.1SglassDevice Type Description 191.1Sglass--------------------------------------------------------------------------- 201.1Sglasszs CHAR zilog 8530 serial ports; used for serial ports, keybd, mouse 211.1Sglassle IFNET lance ethernet driver 221.1Sglass 231.1Sglass'obctl' Bus: 241.1SglassDevice Type Description 251.1Sglass--------------------------------------------------------------------------- 261.1Sglassidprom CHAR makes idprom contents accessible in user-space 271.1Sglass 281.1Sglass 291.1SglassThe 'prom' device is just wierd as it isn't a real device, but enough 301.1Sglasswrapping so that the prom input/output routines can be used to make 311.1Sglassthe prom's idea of the console both a tty, and a console in the netbsd 321.1Sglasssense. 331.1Sglass 341.1Sglassprom CHAR prom-based tty and console support 351.1Sglass 36