On Sat, 3 Dec 2011, Jalil Karimov wrote: > Hi All, ... > Device works fine on OSwintXP and DSL Linux (2.4.31) 52 MB RAM > I didn't find 2.4 kernel to build and test myself. > > After sticking the device's led is blinking and any operations > (mount,fdisk,eject) will hang. > > dmesg outputs (on linux 2.6 and 3.0 same thing) > > * * * > [ 101.868018] usb 1-6: new high speed USB device using ehci_hcd and > address 2 > [ 101.936241] hub 1-0:1.0: unable to enumerate USB device on port 6 > [ 102.204027] usb 4-2: new full speed USB device using uhci_hcd and > address 2 These messages suggest a hardware problem. Maybe in the card reader, maybe in the USB cable, maybe in the computer. Try testing the card reader on other computers and other devices (a flash drive perhaps) on this computer. Alan Stern -- 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