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. I've tried boosting interrupt priority on the musb-controller with limited success (it gets from the lower end of the bandwidth to the upper.) Is there anything else I could try to mitigate this problem and improve performance? Best regards, Frederik Schmid Rubico AB www.rubico.se -- 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
