Hello, I have a usb stick which was (apparently) broken after plug it on a usb port on my laptop [1] My sequence of operation is attached at kern.log-commented.gz This laptop have a port which "Anytime USB Charge (see inside http://www.shopfujitsu.com/www/content/products/notebooks/notebooks.php?products/notebooks/features_benefits/ah572_features_benefits)", but it is disabled on BIOS (so there should not be a problem) stick owner tell me about this stick was working before I plug it on my laptop. Is it possible that my laptop kill/broke usb sticks ? I think this is the second time that such thing happens. I have tried to recover the stick without success: * https://paulphilippov.com/articles/how-to-fix-device-not-accepting-address-error * Try it on linux / windows / mac * echo -1 >/sys/module/usbcore/parameters/autosuspend [2] * echo Y > /sys/module/usbcore/parameters/use_both_schemes [3] * echo Y > /sys/module/usbcore/parameters/old_scheme_first Do you have any recomendation? What could be happen to my usb stick? Thank you very much ! [1] Fujitsu laptop, with next info obtain from dmidecode: System Information Manufacturer: FUJITSU Product Name: LIFEBOOK U772 Version: 10601581541 BIOS Information Vendor: FUJITSU // Phoenix Technologies Ltd. Version: Version 2.03 Release Date: 10/15/2012 ... Characteristics: ... USB legacy is supported ... And with lsusb -v output attached (xzipped) to this mail [2] After reading https://www.kernel.org/doc/Documentation/usb/power-management.txt I can read that my device can be damaged by autosuspend (this can apply to a usb stick?): "The kernel will not prevent you from enabling autosuspend on devices that can't handle it. It is even possible in theory to damage a device by suspending it at the wrong time. (Highly unlikely, but possible.) Take care." [3] https://bugzilla.kernel.org/show_bug.cgi?id=4052
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