tools/usb/p9_fwd.py

2 # SPDX-License-Identifier: GPL-2.0
17     The string is a Path representation of the position of the USB device on the USB bus tree.
19     This path is used to find a USB device on the bus or all devices connected to a HUB.
20 …  The path is made up of the number of the USB controller followed be the ports of the HUB tree."""
23         return f"{dev.bus}-{dev_path}"
32     def _log_hexdump(data):  argument
36         for c in range(0, len(data), L):
37             chars = data[c : c + L]
43     def __init__(self, server, vid, pid, path):  argument
54             if path is not None:
55                 return dev_path == path
69             # we have to detach the usb-storage driver from multi gadget since
107         data = None
108         while data is None:
111                 data = self.ep_in.read(self.ep_in.wMaxPacketSize)
122         size = struct.unpack("<I", data[:4])[0]
123         while len(data) < size:
124             data += self.ep_in.read(size - len(data))
126         self._log_hexdump(data)
127         self.s.send(data)
135         data = self.s.recv(4)
136         size = struct.unpack("<I", data[:4])[0]
137         while len(data) < size:
138             data += self.s.recv(size - len(data))
140         self._log_hexdump(data)
141         while data:
142             written = self.ep_out.write(data)
144             data = data[written:]
158         if (time.monotonic() - self.stats_logged) < interval:
167         with open(f"/sys/bus/usb/devices/{dev.bus}-{dev.address}/{name}") as f:
176     print("Bus | Addr | Manufacturer     | Product          | ID        | Path")
177     print("--- | ---- | ---------------- | ---------------- | --------- | ----")
179         path = path_from_usb_dev(dev) or ""
183 …address:4} | {manufacturer:16} | {product:16} | {dev.idVendor:04x}:{dev.idProduct:04x} | {path:18}"
190     f = Forwarder(server=(args.server, args.port), vid=vid, pid=pid, path=args.path)
206     parser.add_argument("--id", type=str, default="1d6b:0109", help="vid:pid of target device")
207     parser.add_argument("--path", type=str, required=False, help="path of target device")
208     parser.add_argument("-v", "--verbose", action="count", default=0)
223 …parser_connect.add_argument("-s", "--server", type=str, default="127.0.0.1", help="server hostname…
224     parser_connect.add_argument("-p", "--port", type=int, default=564, help="server port")
228     logging.TRACE = logging.DEBUG - 5
237     logging.basicConfig(level=level, format="%(asctime)-15s %(levelname)-8s %(message)s")