USB suspend e reset

clipped from marc.info > is there a way to turn off USB devices from user-space? No. However there is a way to suspend a USB device. In order to use it, you must have a kernel with CONFIG_PM_SYSFS_DEPRECATED turned on. To suspend a device, do (as root): echo -n 2 >/sys/bus/usb/devices/.../power/state where the "..." is the ID for your device. To unsuspend, do the same thing but with a "0" instead of the "2" above. Note that this mechanism is slated to be removed from the kernel within the next year. Hopefully some other mechanism will take its place. > To reset a > device? Here's a program to do it. You invoke it as either usbreset /proc/bus/usb/BBB/DDD or usbreset /dev/usbB.D depending on how your system is set up, where BBB and DDD are the bus and device address numbers.

Questa me la segno.

Il sorgente di usbreset è su marc.info (si limita a mandare una semplice ioctl: Linux è grandioso).