59 lines
1.4 KiB
Python
59 lines
1.4 KiB
Python
import time
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import usb1
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class Resetter():
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def __init__(self):
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self._handle = None
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self.connect()
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def __enter__(self):
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return self
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def __exit__(self, *args):
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self.close()
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def close(self):
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self._handle.close()
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self._context.close()
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self._handle = None
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def connect(self):
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if self._handle:
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self.close()
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self._handle = None
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self._context = usb1.USBContext()
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self._context.open()
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for device in self._context.getDeviceList(skip_on_error=True):
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if device.getVendorID() == 0xbbaa and device.getProductID() == 0xddc0:
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try:
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self._handle = device.open()
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self._handle.claimInterface(0)
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break
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except Exception as e:
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print(e)
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assert self._handle
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def enable_power(self, port, enabled):
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self._handle.controlWrite((usb1.ENDPOINT_OUT | usb1.TYPE_VENDOR | usb1.RECIPIENT_DEVICE), 0xff, port, enabled, b'')
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def enable_boot(self, enabled):
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self._handle.controlWrite((usb1.ENDPOINT_OUT | usb1.TYPE_VENDOR | usb1.RECIPIENT_DEVICE), 0xff, 0, enabled, b'')
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def cycle_power(self, dfu=False, ports=None):
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if ports is None:
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ports = [1, 2, 3]
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self.enable_boot(dfu)
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for port in ports:
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self.enable_power(port, False)
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time.sleep(0.05)
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for port in ports:
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self.enable_power(port, True)
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time.sleep(0.05)
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self.enable_boot(False)
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time.sleep(0.12) # takes the kernel this long to detect the disconnect
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