Re: Free Linux Driver Development!

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From: Roland Dreier
Date: Tuesday, January 30, 2007 - 3:15 pm

> > OK, fair enough, I forgot about tg3.  But on the other hand, you
 > > wrote
 > > it without docs, actually _in spite of_ Broadcom, right?
 > > Which I think makes my point that documentation is neither necessary
 > > nor sufficient for a good Linux driver.  Documentation helps, but if
 > > no one competent cares about the device then the driver won't get
 > > written.  On the other hand, if the device is important enough, the
 > > driver will get written without documentation or vendor support.
 > 
 > That's your point??  I thought your point was (quoting your words)
 > 
 > > it's a
 > > bit disingenous to suggest that all a company has to do to get a
 > > driver written and supported is throw some documentation over the
 > > wall.  And it's crazy to suggest that the driver will work on every
 > > platform and be supported by enterprise distros.
 > 
 > To repeat -- that's how most Linux drivers have been written,
 > /particularly/ the ones used most by users of enterprise distros.

I thought you wrote tg3 without docs and without help from Broadcom?

To repeat, my point is that the drivers used most by users of
enterprise distros will get written with or without vendor docs or
help.  Drivers for hardware that only a few people care about probably
won't be written and definitely won't be maintained by volunteers even
if the vendor publishes docs.  And I think that's pretty much what I
said in both of the paragraphs you quoted above.

 - R.
-
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Messages in current thread:
Free Linux Driver Development!, Greg KH, (Mon Jan 29, 6:29 pm)
Re: Free Linux Driver Development!, Rik van Riel, (Mon Jan 29, 7:19 pm)
Re: Free Linux Driver Development!, Greg KH, (Mon Jan 29, 7:23 pm)
Re: Free Linux Driver Development!, Bauke Jan Douma, (Tue Jan 30, 12:33 am)
Re: Free Linux Driver Development!, Jan Engelhardt, (Tue Jan 30, 3:52 am)
Re: Free Linux Driver Development!, Florian Weimer, (Tue Jan 30, 6:45 am)
Re: Free Linux Driver Development!, Manu Abraham, (Tue Jan 30, 10:30 am)
Re: Free Linux Driver Development!, Roland Dreier, (Tue Jan 30, 10:45 am)
Re: Free Linux Driver Development!, Manu Abraham, (Tue Jan 30, 10:55 am)
Re: Free Linux Driver Development!, Jeff V. Merkey, (Tue Jan 30, 11:11 am)
Re: Free Linux Driver Development!, Jeff Garzik, (Tue Jan 30, 11:20 am)
Re: Free Linux Driver Development!, Roland Dreier, (Tue Jan 30, 12:02 pm)
Re: Free Linux Driver Development!, Dmitri Vorobiev, (Tue Jan 30, 12:08 pm)
Re: Free Linux Driver Development!, Greg KH, (Tue Jan 30, 12:10 pm)
Re: Free Linux Driver Development!, Greg KH, (Tue Jan 30, 12:11 pm)
Re: Free Linux Driver Development!, Greg KH, (Tue Jan 30, 12:12 pm)
Re: Free Linux Driver Development!, Greg KH, (Tue Jan 30, 12:14 pm)
Re: Free Linux Driver Development!, Greg KH, (Tue Jan 30, 12:15 pm)
Re: Free Linux Driver Development!, Roland Dreier, (Tue Jan 30, 12:29 pm)
Re: Free Linux Driver Development!, Jan Engelhardt, (Tue Jan 30, 12:31 pm)
Re: Free Linux Driver Development!, Bill Davidsen, (Tue Jan 30, 12:33 pm)
Re: Free Linux Driver Development!, Jeff Garzik, (Tue Jan 30, 12:36 pm)
Re: Free Linux Driver Development!, Florian Weimer, (Tue Jan 30, 12:40 pm)
Re: Free Linux Driver Development!, Jeff Garzik, (Tue Jan 30, 12:46 pm)
Re: Free Linux Driver Development!, Greg KH, (Tue Jan 30, 12:46 pm)
Re: Free Linux Driver Development!, Greg KH, (Tue Jan 30, 12:47 pm)
Re: Free Linux Driver Development!, Greg KH, (Tue Jan 30, 12:49 pm)
Re: Free Linux Driver Development!, Diego Calleja, (Tue Jan 30, 12:52 pm)
Re: Free Linux Driver Development!, Greg KH, (Tue Jan 30, 12:54 pm)
Re: Free Linux Driver Development!, Greg KH, (Tue Jan 30, 12:55 pm)
Re: Free Linux Driver Development!, Greg KH, (Tue Jan 30, 1:11 pm)
Re: Free Linux Driver Development!, Andrew Lyon, (Tue Jan 30, 1:15 pm)
Re: Free Linux Driver Development!, Diego Calleja, (Tue Jan 30, 1:23 pm)
Re: Free Linux Driver Development!, Greg KH, (Tue Jan 30, 1:30 pm)
Re: Free Linux Driver Development!, Jan Engelhardt, (Tue Jan 30, 1:39 pm)
Re: Free Linux Driver Development!, Valdis.Kletnieks, (Tue Jan 30, 1:42 pm)
Re: Free Linux Driver Development!, Roland Dreier, (Tue Jan 30, 2:38 pm)
Re: Free Linux Driver Development!, Roland Dreier, (Tue Jan 30, 2:46 pm)
Re: Free Linux Driver Development!, Greg KH, (Tue Jan 30, 2:47 pm)
Re: Free Linux Driver Development!, Roland Dreier, (Tue Jan 30, 3:00 pm)
Re: Free Linux Driver Development!, Jeff Garzik, (Tue Jan 30, 3:08 pm)
Re: Free Linux Driver Development!, Jeff Garzik, (Tue Jan 30, 3:12 pm)
Re: Free Linux Driver Development!, Dave Airlie, (Tue Jan 30, 3:14 pm)
Re: Free Linux Driver Development!, Roland Dreier, (Tue Jan 30, 3:15 pm)
Re: Free Linux Driver Development!, Roland Dreier, (Tue Jan 30, 3:19 pm)
Re: Free Linux Driver Development!, Manu Abraham, (Tue Jan 30, 3:21 pm)
Re: Free Linux Driver Development!, Lennart Sorensen, (Tue Jan 30, 3:23 pm)
Re: Free Linux Driver Development!, Trent Waddington, (Tue Jan 30, 3:24 pm)
Re: Free Linux Driver Development!, Lennart Sorensen, (Tue Jan 30, 3:27 pm)
Re: Free Linux Driver Development!, Jeff Garzik, (Tue Jan 30, 3:34 pm)
Re: Free Linux Driver Development!, John W. Linville, (Tue Jan 30, 3:39 pm)
Re: Free Linux Driver Development!, Jeff Garzik, (Tue Jan 30, 3:41 pm)
Re: Free Linux Driver Development!, Alan, (Tue Jan 30, 3:43 pm)
Re: Free Linux Driver Development!, Roland Dreier, (Tue Jan 30, 3:50 pm)
Re: Free Linux Driver Development!, Jeff Garzik, (Tue Jan 30, 4:01 pm)
Re: Free Linux Driver Development!, Greg KH, (Tue Jan 30, 4:05 pm)
Re: Free Linux Driver Development!, Jeff Garzik, (Tue Jan 30, 4:09 pm)
Re: Free Linux Driver Development!, Roland Dreier, (Tue Jan 30, 4:29 pm)
Re: Free Linux Driver Development!, Manu Abraham, (Tue Jan 30, 4:45 pm)
Re: Free Linux Driver Development!, Jeff Garzik, (Tue Jan 30, 5:16 pm)
Re: Free Linux Driver Development!, Greg KH, (Tue Jan 30, 5:46 pm)
Re: Free Linux Driver Development!, Roland Dreier, (Tue Jan 30, 6:07 pm)
Re: Free Linux Driver Development!, Adrian Bunk, (Tue Jan 30, 6:13 pm)
Re: Free Linux Driver Development!, Trent Waddington, (Tue Jan 30, 6:19 pm)
Re: Free Linux Driver Development!, Greg KH, (Tue Jan 30, 6:24 pm)
Re: Free Linux Driver Development!, Greg KH, (Tue Jan 30, 6:30 pm)
Re: Free Linux Driver Development!, Bartlomiej Zolnierki ..., (Tue Jan 30, 7:11 pm)
Re: Free Linux Driver Development!, Adrian Bunk, (Tue Jan 30, 7:14 pm)
Re: Free Linux Driver Development!, Adrian Bunk, (Tue Jan 30, 7:14 pm)
Re: Free Linux Driver Development!, Michael K. Edwards, (Tue Jan 30, 7:27 pm)
Re: Free Linux Driver Development!, Greg KH, (Tue Jan 30, 11:26 pm)
Re: Free Linux Driver Development!, Kumar Gala, (Tue Jan 30, 11:48 pm)
Re: Rewriting floppy.c was Re: Free Linux Driver Development!, Trent Waddington, (Wed Jan 31, 2:32 am)
Re: Free Linux Driver Development!, David Hollis, (Wed Jan 31, 6:34 am)
Re: Free Linux Driver Development!, Eric Sandeen, (Wed Jan 31, 10:03 am)
Re: Free Linux Driver Development!, Jeff Garzik, (Wed Jan 31, 10:07 am)
Re: Free Linux Driver Development!, Eric Sandeen, (Wed Jan 31, 10:09 am)
Re: Free Linux Driver Development!, Alan, (Wed Jan 31, 10:28 am)
Re: Free Linux Driver Development!, Sergei Organov, (Wed Jan 31, 10:41 am)
Re: Free Linux Driver Development!, Jan Engelhardt, (Wed Jan 31, 10:50 am)
Re: Free Linux Driver Development!, Jeff Garzik, (Wed Jan 31, 10:55 am)
Re: Free Linux Driver Development!, Jan Engelhardt, (Wed Jan 31, 10:56 am)
Re: Free Linux Driver Development!, alan, (Wed Jan 31, 10:58 am)
Re: Free Linux Driver Development!, Jan Engelhardt, (Wed Jan 31, 11:29 am)
Re: Free Linux Driver Development!, Bob Copeland, (Wed Jan 31, 11:37 am)
Re: Rewriting floppy.c was Re: Free Linux Driver Development!, Lennart Sorensen, (Wed Jan 31, 11:58 am)
Re: Free Linux Driver Development!, alan, (Wed Jan 31, 12:17 pm)
Re: Free Linux Driver Development!, Michael K. Edwards, (Wed Jan 31, 1:01 pm)
Re: Free Linux Driver Development!, Jan-Benedict Glaw, (Wed Jan 31, 2:13 pm)
Re: Rewriting floppy.c was Re: Free Linux Driver Development!, Jan-Benedict Glaw, (Wed Jan 31, 2:46 pm)
Re: Free Linux Driver Development!, Willy Tarreau, (Wed Jan 31, 2:56 pm)
Re: Free Linux Driver Development!, Jan-Benedict Glaw, (Wed Jan 31, 3:04 pm)
Re: Free Linux Driver Development!, Greg KH, (Wed Jan 31, 10:46 pm)
Re: Free Linux Driver Development!, Greg KH, (Wed Jan 31, 10:52 pm)
Re: Rewriting floppy.c was Re: Free Linux Driver Development!, Bartlomiej Zolnierki ..., (Thu Feb 1, 6:12 am)
Re: Free Linux Driver Development!, Erik Mouw, (Thu Feb 1, 6:59 am)
Re: Free Linux Driver Development!, Sergei Organov, (Thu Feb 1, 7:22 am)
Re: Free Linux Driver Development!, Alan, (Thu Feb 1, 7:41 am)
Re: Free Linux Driver Development!, Lennart Sorensen, (Thu Feb 1, 7:45 am)
Re: Free Linux Driver Development!, Michael Buesch, (Thu Feb 1, 8:46 am)
Re: Free Linux Driver Development!, Lennart Sorensen, (Thu Feb 1, 9:42 am)
Re: Free Linux Driver Development!, Michael K. Edwards, (Thu Feb 1, 10:48 am)
Re: Free Linux Driver Development!, Erik Mouw, (Thu Feb 1, 3:39 pm)
Re: Free Linux Driver Development!, Christer Weinigel, (Sun Feb 4, 6:29 am)
Re: Free Linux Driver Development!, Greg KH, (Sun Feb 4, 11:19 am)
Re: Free Linux Driver Development!, Pierre Ossman, (Sun Feb 4, 11:59 am)
Re: Free Linux Driver Development!, Bill Davidsen, (Sun Feb 4, 1:54 pm)
Re: Free Linux Driver Development!, Christer Weinigel, (Sun Feb 4, 2:33 pm)
Re: Free Linux Driver Development!, Stefan Seyfried, (Mon Feb 5, 2:49 am)
Re: Free Linux Driver Development!, Greg KH, (Mon Feb 5, 11:44 pm)
Re: Free Linux Driver Development!, Manu Abraham, (Tue Feb 6, 1:29 am)
Re: Free Linux Driver Development!, Sunil Naidu, (Tue Feb 6, 6:37 am)
Re: Free Linux Driver Development!, Dave Jones, (Tue Feb 6, 7:57 am)
Re: Free Linux Driver Development!, Bill Davidsen, (Tue Feb 6, 8:12 am)
Re: Free Linux Driver Development!, Stefan Seyfried, (Tue Feb 6, 9:11 am)
Re: Free Linux Driver Development!, Gene Heskett, (Tue Feb 6, 9:30 am)
Re: Free Linux Driver Development!, Gene Heskett, (Tue Feb 6, 9:36 am)
Re: Free Linux Driver Development!, Greg KH, (Tue Feb 6, 11:21 am)
Re: Free Linux Driver Development!, Miguel Ojeda, (Wed Feb 7, 12:12 am)
Re: Free Linux Driver Development!, Laurent Pinchart, (Wed Feb 7, 3:30 am)
Re: Free Linux Driver Development!, Tejun Heo, (Wed Feb 7, 7:03 am)
Re: Free Linux Driver Development!, Greg KH, (Wed Feb 7, 11:40 am)
Re: Free Linux Driver Development!, Greg KH, (Wed Feb 7, 11:42 am)