On Tue, 2006-08-15 at 18:38 +0200, Michael Buesch wrote: > On Tuesday 15 August 2006 18:29, Dan Williams wrote: > > o Separate attributes for channel and frequency > > No, channel and freq is the same. It's just another name > for the same child. I would say we only want to deal with channel numbers > in the API. That's much easier, as we don't have to deal with this > fixed-point (or even floating point) mess. Look at WE for the > fixed-point mess.
Right, I don't have a problem with only using one or the other; but we _HAVE_ to provide a function in the driver that allows userspace programs to convert channel <-> frequency both ways, like you suggest below. Obviously the channel/frequency mapping isn't the same everywhere. [ or is it? I'd be very uncomfortable using the same channel #s everywhere unless some IEEE spec states exactly what the channel #s are for every frequency range that wireless stuff operates in ] > The userspace tools can easily convert freq to channel and back. > And in the kernel, we can easily provide some small function > to convert from channel to khz and back, for example. But I would > like to see the fixed-point stuff in the API vanish. No argument here; as long as we provide the mapping function in the driver for each card. > > o Method of finding out channel <-> frequency mapping (not all drivers > > support this in the SIOCGIWRANGE handler now) > > Yes, that would be a good idea. > Comes next to the conversion function (see above). Yep. Dan - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
