<p><b>@gschorcht</b> commented on this pull request.</p>

<p><a class="user-mention" data-hovercard-type="user" data-hovercard-url="/hovercards?user_id=27685108" data-octo-click="hovercard-link-click" data-octo-dimensions="link_type:self" href="https://github.com/JannesVolkens">@JannesVolkens</a> Are there real changes in driver implementation or just renamings?</p>
<p>When I took a look to the register maps of both sensors, I figured out the following:</p>
<ul>
<li>the <code>ACCEL_CONFIG</code> register is splitted into two registers (register 28 an 29). The additional register <code>ACCEL_CONFIG2</code> only contains the settings <code>ACCEL_FCHOICE_B</code> and  <code>A_DLPF_CFG</code> that seem to be new in MPU9250.</li>
<li>additional new configuration <code>FCHOICE_B</code> in <code>GYRO_CONFIG</code> register 26</li>
<li>in MPU9250, the FIFO mode can be configured by by an additional bit in register 26.</li>
</ul>
<p>Did you check in detail that all the bits in new registers are not required to be handled?</p>

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