Hi,
We are using usb function exposed as a serial device. It is our own
proprietary hardware (running linux) exposed as a serial device. The
host side (windows) identifies our serial device with the driver
"wceusbsh.sys". The enumeration goes successfully and we get to see
our device in the device manager. To carry communication we open
"file=CreateFile ("\\\\.\\wceusbsh001", GENERIC_READ + GENERIC_WRITE,
0, 0, OPEN_EXISTING, 0, NULL);" on the host side. At times we see
success while at times windows gives an error message "Device not
found". The device manager shows our device properly (with the driver
installed etc). What could be the cause of this error?
Thanks,
Ajay
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