On Tue, 25 Jun 2013, [email protected] wrote: > I am using an smsc 4-port IC hub that keeps disconnecting with a bunch > of XactErrs. I am using three high-speed mpeg encoders, and one USB > SD-card reader. The hub is wired into the host port of an SBC. > > If I use the same devices, kernel, drivers, SBC, etc. with a desktop > USB hub, everything is OK. But after a minute of using the IC hub > (streaming from all three encoders, and writing video data to the USB > card reader), everything disconnects. > > A different set of all the same hardware exhibits the same behavior. > > I have attached dmesg and usbmon output, if anyone can help point to a > possible root cause?
Insufficient electrical power. Or the hub is buggy. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
