-a | Show all items. |
-f device |
| Specify a path name for the device to operate on. |
-l | Loop and dump the device data every time it changes. |
-n | Suppress printing of the item name. |
-r | Dump the report descriptor. |
-t table |
| Specify a path name for the HID usage table file. |
-v | Be verbose. |
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