> On Wed, Jan 04, 2012 at 01:52:15AM +0100, Marek Vasut wrote: > > > On Fri, Dec 30, 2011 at 05:58:25PM -0800, Stephen Hemminger wrote: > > > > I have a bike computer with a USB cradle and the obligatory crap > > > > windows app. Didn't bother with it much but discovered there is an > > > > open source bike monitoring app with download for lots of different > > > > hardware (Golden Cheetah). But it doesn't support the VDO Z3. > > > > > > > > The hardware shows up as a Megawin USB serial bridge. There is a > > > > datasheet online, and looks like others have fiddled with it in the > > > > past. Is there anything wrong with just making a stub wrapper that > > > > calls the usb generic driver, or is it better to just add more ID's > > > > to the existing driver? > > > > > > We've traditionally just created a new driver for devices like this, it > > > should be really tiny, like the file drivers/usb/serial/zio.c > > > > > > We've talked about merging all of these "generic" drivers together, and > > > probably should one day, as it would be simpler, no one has really > > > gotten around to it yet. > > > > Didn't I attempt it back in some really old times? But it was rejected, > > no idea why. Anyway, if someone could consolidate these and allow the > > driver to bind to arbitrary IDs, that'd be good. > > You can do that today by adding individual device ids through sysfs. > > Odds are, you never really want to use the generic driver, so making it > a new driver allows you to bump up the number of urbs, to make things > work "quicker". I'll look into merging these drivers in the 3.4 > timeframe, I have other things to handle at the moment for 3.3... > Thanks, it's not a hot topic anyway so no need to hurry. M > thanks, > > greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
