On Sun, Feb 06, 2011 at 04:57:11PM +0100, Alessio Frusciante wrote: > Hi, > I'm trying to use my Canon EOS 550D digital camera with kernel 2.6.32, > it seems to be correctly recognized, but I see an USB disconnect after > about 30 seconds. This is the relevant section of dmesg: > > [ 1205.408516] usb 1-1: new high speed USB device using ehci_hcd and > address 3 > [ 1205.541927] usb 1-1: New USB device found, idVendor=04a9, > idProduct=31ea > [ 1205.541931] usb 1-1: New USB device strings: Mfr=1, Product=2, > SerialNumber=0 > [ 1205.541933] usb 1-1: Product: Canon Digital Camera > [ 1205.541935] usb 1-1: Manufacturer: Canon Inc. > [ 1205.542023] usb 1-1: configuration #1 chosen from 1 choice > [ 1234.913526] usb 1-1: USB disconnect, address 3 That's normal, has it ever been any different? Devices control disconnect, there's nothing we can do from the operating system to disconnect a device. What happens if you start to use the camera before the 30 seconds is up by looking at the filesystem and/or mounting it? 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