High, On Wed, 7 Nov 2001 [EMAIL PROTECTED] wrote: > Hi, > > I can successfully install the 3c905 Ethernet driver, > but I dont know why it works. This proves I dont know > what is going on. I hope that someone can offer some > light. > > I use install parameters irq=11" and I dont set an io > address. If I try fill in the address e.g. io=0x220" I > receive an error the param_io is invalid. > > Dont the irq number and the address of the buffer go > together? Doesnt the os put data in a buffer before > sending, and then make in interrupt to tell the hardware > to come get it? > > Can someone tell me where the buffer is and how linux > and the hardware agree on its address? > The 3c905 is a pci card, so you do not need to give an irq either. At computer bootup, the BIOS generates a database of the hardware installed and assignes irq's and io addresses to the hardware installed in your computer. This is done before any OS starts. Linux uses this bios database to set up its hardware. If you want to see more information about your pci cards, just do a 'cat /proc/pci'. /proc/interrupts and /proc/ioports give also a lot of information.
That is how it works roughly, I am not sure about details. Greetz, Sebastiaan -- NT is the OS of the future. The main engine is the 16-bit Subsystem (also called MS-DOS Subsystem). Above that, there is the windoze 95/98 16-bit Subsystem. Anyone can see that 16+16=32, so windoze NT is a *real* 32-bit system. >
