| Michael Hennerich | e31166f | 2012-05-29 12:41:20 +0200 | [diff] [blame] | 1 | What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency_resolution |
| 2 | KernelVersion: 3.4.0 |
| 3 | Contact: linux-iio@vger.kernel.org |
| 4 | Description: |
| 5 | Stores channel Y frequency resolution/channel spacing in Hz. |
| 6 | The value given directly influences the MODULUS used by |
| 7 | the fractional-N PLL. It is assumed that the algorithm |
| 8 | that is used to compute the various dividers, is able to |
| 9 | generate proper values for multiples of channel spacing. |
| 10 | |
| 11 | What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_refin_frequency |
| 12 | KernelVersion: 3.4.0 |
| 13 | Contact: linux-iio@vger.kernel.org |
| 14 | Description: |
| 15 | Sets channel Y REFin frequency in Hz. In some clock chained |
| 16 | applications, the reference frequency used by the PLL may |
| 17 | change during runtime. This attribute allows the user to |
| 18 | adjust the reference frequency accordingly. |
| 19 | The value written has no effect until out_altvoltageY_frequency |
| 20 | is updated. Consider to use out_altvoltageY_powerdown to power |
| Peter Meerwald | 6907851 | 2013-07-07 21:24:00 +0100 | [diff] [blame] | 21 | down the PLL and its RFOut buffers during REFin changes. |