[PATCH 00/20] staging: brcm80211: 7th reaction for mainline patch #2
zajec5 at gmail.com
Wed Sep 21 06:55:12 PDT 2011
W dniu 21 września 2011 15:52 użytkownik Rafał Miłecki
<zajec5 at gmail.com> napisał:
> W dniu 21 września 2011 15:40 użytkownik John W. Linville
> <linville at tuxdriver.com> napisał:
>> On Tue, Sep 20, 2011 at 10:56:49PM +0200, Rafał Miłecki wrote:
>>> 2011/9/20 Johannes Berg <johannes at sipsolutions.net>:
>>> > On Tue, 2011-09-20 at 06:03 -0700, Greg KH wrote:
>>> >> And while code is great and nice, I still haven't seen any real answers
>>> >> to all of the questions that were asked of the Broadcom driver team
>>> >> during that review by the linux-wireless developers about how things
>>> >> will be handled properly due to the overlap in functionality with the
>>> >> existing "real" driver in the tree.
>>> > Let's qualify this to "some developers".
>>> > One thing I'd like to point out is that the Broadcom's firmware API has
>>> > always undergone changes over time. I'm actually surprised that b43
>>> > works as well as it does (which, tbh, isn't very well at all, at least
>>> > for me with some 11n PHY). I also don't think that Broadcom are going to
>>> > maintain compatibility and/or maintain new firmware features for old
>>> > devices, that just doesn't make any sense.
>>> Actually, when we got some single response from Broadcom about their
>>> relation to b43, they haven't mentioned support for old HW is any
>>> problem at all. They just pointed we don't support calibration for
>>> N-PHY and we don't support 802.11n feature for a better performance.
>>> I feel we're creating some problems ourself. Just some guessing that
>>> support for older HW can be real problem for future development... not
>>> confirmed by anyone at all.
>> Their new firmware doesn't run on the older hardware, no?
> AFAIK it does (unless you mean hardware covered by b43legacy).
> If you take a look at 666.2 firmware, it's still available for core 5
> (and 9, 13, etc.)
The reason I've added support for new firmware without dropping
support for older, was users experience. I didn't want to leave anyone
with b43 not working after kernel update (without firmware update).
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