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usb.py: no trailing GETSTATUS in DFU jump

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comma
2026-08-28 09:19:27 +08:00
parent 542603ec3c
commit 2feb6b0b28
3 changed files with 6 additions and 7 deletions
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panda/python/usb.py
+4 -5
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@@ -91,8 +91,7 @@ class STBootloaderUSBHandle(BaseSTBootloaderHandle):
def jump(self, address):
self._libusb_handle.controlWrite(0x21, self.DFU_DNLOAD, 0, 0, b"\x21" + struct.pack("I", address))
self._status()
try:
self._libusb_handle.controlWrite(0x21, self.DFU_DNLOAD, 2, 0, b"")
_ = str(self._libusb_handle.controlRead(0x21, self.DFU_GETSTATUS, 0, 0, 6))
except Exception:
pass
# NOTE: no trailing GETSTATUS after the Go. The read would block for the
# 15s timeout and then hit the freshly booted app over USB without claiming
# the interface, which disconnects it.
self._libusb_handle.controlWrite(0x21, self.DFU_DNLOAD, 2, 0, b"")