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Diffstat (limited to 'system/uhubctl/README')
| -rw-r--r-- | system/uhubctl/README | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/system/uhubctl/README b/system/uhubctl/README new file mode 100644 index 0000000000..9b5480b0cc --- /dev/null +++ b/system/uhubctl/README @@ -0,0 +1,12 @@ +uhuctl is a utility to control USB power per-port on smart USB hubs. +Smart hub is defined as one that implements per-port power switching. + +Some hub give false report (lsusb -v) that they support per-port +power switching. + +It also works for devices that support unbind. Example: you want to +disconnect a device programmatically, but no physically. In this case +the usb has still power but the device 'unplugs'. + +Original idea for this code was inspired by hub-ctrl.c by Niibe Yutaka: +http://www.gniibe.org/development/ac-power-control-by-USB-hub |