On Friday 12 October 2007 16:48:30 Johannes Berg wrote: > (a) the driver registers which channel center frequencies it can > operate with, it could in theory just be a range (e.g. 2400-2500 > MHz) or more practically be list of center frequencies. List would be best, but.. > Just > contains frequencies and possibly hardware dependent values for the > frequency. This is done in "bands", something like > FREQUENCY_BAND_2_4GHZ and FREQUENCY_BAND_5GHZ, "bands" replace the > current "modes". Being able to just register frequency bands would work for many (but not all) drivers out there and would be more convenient than listing everything. > (b) additionally, the driver registers as flags > - whether it can support G mode short slot operation > - whether it can receive B mode short barker preambles > (both of which are only relevant if it supports 2.4 GHz operation) I haven't seen any softmac 11b hardware that doesn't support receiving short preamble yet. > (d) now, selecting a channel by frequency is unique, but we need to > give new options to select short slot, short preamble and allowed > bitrates. Short preamble? What would the hardware do with this bit? > Does anyone see problems with this? More specific examples of the API you have in mind would be helpful. Thanks, -Michael Wu
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