Restarting device power causes USB communication failure
许叶洪 <[email protected]> Wed, 24 Apr 2024 11:27:04 +0800
| Newsgroups | gmane.comp.lib.libusb.devel.windows |
|---|---|
| Message-ID | <[email protected]> |
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Hi,
The GUI I wrote called libusb-win32 to communicate with Keysight DMM 34464A
via USB. During the communication process, I restarted the power supply of
the DMM. From the bus sound software, it appears that USB is no longer able
to send messages. Opening the GUI again allows for USB communication. After
opening the GUI several times, USB cannot send messages again. Why is this
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class=3DWordSection1><p class=3DMsoNormal><span =
lang=3DEN-US>Hi,<o:p></o:p></span></p><p class=3DMsoNormal =
style=3D'text-indent:21.0pt'><span lang=3DEN-US>The GUI I wrote called =
libusb-win32 to communicate with Keysight DMM 34464A via USB. During the =
communication process, I restarted the power supply of the DMM. From the =
bus sound software, it appears that USB is no longer able to send =
messages. Opening the GUI again allows for USB communication. After =
opening the GUI several times, USB cannot send messages again. Why is =
this<o:p></o:p></span></p></div></body></html>
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