--- On Fri, 1/15/10, Greg KH <greg@xxxxxxxxx> wrote: > From: Greg KH <greg@xxxxxxxxx> > Subject: Re: Simple USB raw data drivers or APIs > To: "Pete Zaitcev" <zaitcev@xxxxxxxxxx> > Cc: "Ron Madrid" <ron_madrid@xxxxxxxxxxxxx>, linux-usb@xxxxxxxxxxxxxxx > Date: Friday, January 15, 2010, 11:15 AM > On Fri, Jan 15, 2010 at 11:38:11AM > -0700, Pete Zaitcev wrote: > > On Thu, 14 Jan 2010 15:50:29 -0800 > > Greg KH <greg@xxxxxxxxx> > wrote: > > > > > > I'm mostly worried about speed. I just > want to be able to dump > > > > data as quickly as possible. > > > > > The serial one should allow you to hit the > maximum line-speed for your > > > hardware, with no overhead for any extra > protocols. So I would > > > recommend using that one. > > > > I don't believe it to be feasible to push 4.8 > gigabits/s worth of > > data through the goddamn flip buffers and workqueues. > NO WAI. > > I didn't know that USB could get to 4.8Gb/s :) > > For USB 2.0 speeds, the tty layer should be just fine, > right? Put a > microcontroller doing data acquision on the other side of > it, and I > would be amazed if it could keep up with the data rate. > > But hey, Ron knows his system better than us, perhaps it > can do this, > and if so, then you might want to look into something > else. I doubt my system will get close to that sort of throughput. I just want to get it going faster, cheaper, and with a short development cycle, is that so much to ask? ;) Ron -- 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
