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--- tecnologia:lector_usb [2021/11/29 22:44] – admin
+++ tecnologia:lector_usb [2021/11/30 09:22] (current) – admin
@@ Line 1: / Line 1: @@
 Para reiniciar USB y que vuelva a leer.
+Si lanzamos la lectura, da error como si estuviera ocupado:
+  python3 /home/pi/axpertbot-lite-main/local/inverter_data_read.py 92931712101193
+<code>
+Traceback (most recent call last):
+  File "/home/pi/axpertbot-lite-main/local/inverter_data_read.py", line 16, in <module>
+    inverter = inverter_utilities.getDevice(0x0665, 0x5161, argDeviceSerialNumber)
+  File "/home/pi/axpertbot-lite-main/local/inverter_utilities.py", line 53, in getDevice
+    serialNumberOutput = getSerialNumber(dev)
+  File "/home/pi/axpertbot-lite-main/local/inverter_utilities.py", line 74, in getSerialNumber
+    dev.set_interface_altsetting(0,0)
+  File "/usr/lib/python3/dist-packages/usb/core.py", line 902, in set_interface_altsetting
+    self._ctx.managed_set_interface(self, interface, alternate_setting)
+  File "/usr/lib/python3/dist-packages/usb/core.py", line 102, in wrapper
+    return f(self, *args, **kwargs)
+  File "/usr/lib/python3/dist-packages/usb/core.py", line 199, in managed_set_interface
+    self.managed_claim_interface(device, i)
+  File "/usr/lib/python3/dist-packages/usb/core.py", line 102, in wrapper
+    return f(self, *args, **kwargs)
+  File "/usr/lib/python3/dist-packages/usb/core.py", line 167, in managed_claim_interface
+    self.backend.claim_interface(self.handle, i)
+  File "/usr/lib/python3/dist-packages/usb/backend/libusb1.py", line 811, in claim_interface
+    _check(self.lib.libusb_claim_interface(dev_handle.handle, intf))
+  File "/usr/lib/python3/dist-packages/usb/backend/libusb1.py", line 595, in _check
+    raise USBError(_strerror(ret), ret, _libusb_errno[ret])
+usb.core.USBError: [Errno 16] Resource busy
+</code>
 Buscamos cual es el product y vendor del USB:
@@ Line 41: / Line 69: @@
 </code>
-Reseteamos los dos (solo con uno funciona)
+Reseteamos los dos. El primero es el 92931712101193 y el segundo es 92931803103279:
   echo 0 > /sys/devices/platform/soc/3f980000.usb/usb1/1-1/1-1.3/authorized
   sleep 1