On Wed, 30 Sep 2009, Andrew Morton wrote: > > http://bugzilla.kernel.org/show_bug.cgi?id=14228 > > > > Summary: EHCI dont recognize USB card reader Alcor 058f:6366 > > There is a bug in ehci-hcd module. Why do you think that's where the bug is? And why do you think there is a bug in the first place? > > System don't recognize SD flash card when I insert it into Alcor 058f:6366 USB > > card reader (it presents in Samsung Q210 notebook). There is nothing appears in > > dmesg. Why should there be anything in dmesg? Are you running a program like hal which will constantly probe the card reader to see if a card has been inserted? > > I found a solution but that's not good: insert flash card and type `rmmod > > ehci-hcd && modprobe ehci-hcd` Probably all you have to do is insert the card and then run (as root): blockdev --rereadpt /dev/sdN where you replace N with the actual drive letter for the card reader. However if you think this should happen automatically and you want to find out why it doesn't, then you should use usbmon to trace the USB communications. Instructions are in the kernel source file Documentation/usb/usbmon.txt. 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
