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Update README.md with wmbusmeters usage of librtlsdr.

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Fredrik Öhrström 2023-10-31 10:17:41 +01:00
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@ -64,9 +64,8 @@ wmbus dongles when wmbusmeters startup.
If the serial device (ttyUSB0) might change you can also use `device=im871a:c1,t1`
which will probe all serial devices but only scans for im871a which also speeds it up.
If you are using a sdr-rtl device, keep in mind that SDR devices are accessed through
character device special files named `/dev/swradio0` to `/dev/swradio255`[^kernel_docs_sdr].
And usually are not found under e.g. `/dev/ttyUSB0`.
Note that the rtl-sdr devices are not found under the tty devices (e.g. `/dev/tty...`).
Instead the rtl-sdr devices are accessed through character device special files named `/dev/swradio0` to `/dev/swradio255`[^kernel_docs_sdr]. Wmbusmeters uses librtsldr to probe these devices.
[^kernel_docs_sdr]: https://docs.kernel.org/userspace-api/media/v4l/dev-sdr.html?highlight=sdr#software-defined-radio-interface-sdr