I am trying to understand working of pci_resource_start function So I browsed code via cscope and searched for string pci_resource_start and got following in pci.h
#define pci_resource_start(dev, bar) ((dev)->resource[(bar)].start)
I am not able to understand how does this above macro works. How does it above macro gets appropriate base address register in configuration space?
The macro s purpose is merely to improve readability in source code, it does not cause any address to be retrieved. In fact, the address (denoted by the start member) has already been discovered earlier on when the PCI bus and/or device was scanned/initialized. ("Start" in this case also means "start of address range" rather than "begin doing something".)
Details of this are most likely to be found in one of the files named pci.c.
For example, let s say I want to find a particular word or number in a file. The contents are in sorted order (obviously). Since I want to run a binary search on the file, it seems like a real waste ...
最好、最小、最快、开放的来源、C/C++ 3d 提供方(在3ds max模型的支持下),而不是通用公平市价,
Given a 10 digit Telephone Number, we have to print all possible strings created from that. The mapping of the numbers is the one as exactly on a phone s keypad. i.e. for 1,0-> No Letter for 2->...
I m trying to find the source of a bug I have found in an open-source application. I have managed to get a build up and running on my Windows machine, but I m having trouble finding the spot in the ...
I wrote below code to readin line by line from stdin ex. city=Boston;city=New York;city=Chicago and then split each line by ; delimiter and print each record. Then in yet another loop I try to ...
I was wondering if there were any good free graphics libraries for C that are easy to use? It s for plotting 2d and 3d graphs and then saving to a file. It s on a Linux system and there s no gnuplot ...
Is there anything other than DDD that will draw diagrams of my data structures like DDD does that runs on Linux? ddd is okay and runs, just kind of has an old klunky feeling to it, just wanted to ...
Please note that this is not homework and i did search before starting this new thread. I got Store an int in a char array? I was looking for an answer but didn t get any satisfactory answer in the ...