zouboan commented on PR #6704:
URL: https://github.com/apache/nuttx/pull/6704#issuecomment-1458356230
Hello:
I'm very interested in NuttX's native uORB, but there's some question
puzzled me. when uORB register a customer sensor by `ioctl` of usensor:
https://github.com/apache/nuttx-apps/blob/master/system/uorb/uORB/uORB.c#L85
usensor will call `sensor_custom_register` to register a new sensor, and the
`file_operations` of new sensor is given by `lower->driver.ops =
&g_usensor_ops;`
https://github.com/apache/nuttx/blob/master/drivers/sensors/usensor.c#L113-L115
what puzzled me is that the `g_usensor_ops` is actually `NULL`, and there's
no assignment for `g_usensor_ops` In usensor.c or `lower->ops` in sensor.c. so,
how can the new sensor's file_operations working?
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