On 2/1/07, Roman Mashak <mrv@xxxxxxxxxxxxx> wrote:
Hello, Rajat! You wrote to "Roman Mashak" <mrv@xxxxxxxxxxxxx> on Thu, 1 Feb 2007 10:44:46 +0530: ??>> Thank you very much, it's much clear now. I have one more question ??>> about the other hardware relevant fields in 'struct net_device': ??>> 'base_addr' and '[r]mem_start/end'. Why is 'base_addr' recommended to ??>> be assigned during device probe, and not later when we can be sure we ??>> do need this resource? And I didn't notice '8139too' driver uses ??>> '[r]mem_start', '[r]mem_end', isn't it mandatory? RJ> I don't have much idea about net_device, but the fields that you are RJ> referring to are quite obsolete, I think. And hence not much drivers RJ> use them today. As for 'base_addr', it's used in rtl8139 driver, for instance, at device probing routine It's only assigned to the value gotten from 'ioremap' function and never being used (at least I didn't find in sources). May be it's for compatibility reasons?
Thats why I said that its not used now a days. These fields are probably a carry forward from early days of Linux networking. Regards, Rajat -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
