On Thu, May 09, 2013 at 10:44:05AM +0200, Frederik Schmid wrote: > Hi, > > I'm developing a camera application on a TI OMAP4460. I have a cmos usb-camera > from IDS (UI-1551-LE-C-HQ) connected to the OTG-port (musb as host) on the > OMAP. > > I get very poor frame rates with this setup reliably. The throughput rate is > ~50-70Mbps. (1600x1200,8bpp,3-5fps) > > I uploaded a screenshot of a packet trace here: > > http://i.imgur.com/26XL23T.png > > The host seems to keep up with the camera most of the time but occasionally > some kind of "glitch" causes the host to lag behind and the camera signals > STALL because of buffer overrun. What kernel version are you using? And what data rate do you expect to be getting with this hardware configuration? 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
