diff options
Diffstat (limited to 'drivers/staging/iio/Documentation/sysfs-bus-iio-dds')
| -rw-r--r-- | drivers/staging/iio/Documentation/sysfs-bus-iio-dds | 81 |
1 files changed, 42 insertions, 39 deletions
diff --git a/drivers/staging/iio/Documentation/sysfs-bus-iio-dds b/drivers/staging/iio/Documentation/sysfs-bus-iio-dds index ffdd5478a35d..ee8c509c6733 100644 --- a/drivers/staging/iio/Documentation/sysfs-bus-iio-dds +++ b/drivers/staging/iio/Documentation/sysfs-bus-iio-dds @@ -1,83 +1,86 @@ -What: /sys/bus/iio/devices/.../ddsX_freqY +What: /sys/bus/iio/devices/.../out_altvoltageX_frequencyY KernelVersion: 2.6.37 Contact: linux-iio@vger.kernel.org Description: Stores frequency into tuning word Y. - There will be more than one ddsX_freqY file, which allows for - pin controlled FSK Frequency Shift Keying - (ddsX_pincontrol_freq_en is active) or the user can control - the desired active tuning word by writing Y to the - ddsX_freqsymbol file. + There will be more than one out_altvoltageX_frequencyY file, + which allows for pin controlled FSK Frequency Shift Keying + (out_altvoltageX_pincontrol_frequency_en is active) or the user + can control the desired active tuning word by writing Y to the + out_altvoltageX_frequencysymbol file. -What: /sys/bus/iio/devices/.../ddsX_freqY_scale +What: /sys/bus/iio/devices/.../out_altvoltageX_frequencyY_scale KernelVersion: 2.6.37 Contact: linux-iio@vger.kernel.org Description: - Scale to be applied to ddsX_freqY in order to obtain the - desired value in Hz. If shared across all frequency registers - Y is not present. It is also possible X is not present if - shared across all channels. + Scale to be applied to out_altvoltageX_frequencyY in order to + obtain the desired value in Hz. If shared across all frequency + registers Y is not present. It is also possible X is not present + if shared across all channels. -What: /sys/bus/iio/devices/.../ddsX_freqsymbol +What: /sys/bus/iio/devices/.../out_altvoltageX_frequencysymbol KernelVersion: 2.6.37 Contact: linux-iio@vger.kernel.org Description: Specifies the active output frequency tuning word. The value - corresponds to the Y in ddsX_freqY. To exit this mode the user - can write ddsX_pincontrol_freq_en or ddsX_out_enable file. + corresponds to the Y in out_altvoltageX_frequencyY. + To exit this mode the user can write + out_altvoltageX_pincontrol_frequency_en or + out_altvoltageX_out_enable file. -What: /sys/bus/iio/devices/.../ddsX_phaseY +What: /sys/bus/iio/devices/.../out_altvoltageX_phaseY KernelVersion: 2.6.37 Contact: linux-iio@vger.kernel.org Description: Stores phase into Y. - There will be more than one ddsX_phaseY file, which allows for - pin controlled PSK Phase Shift Keying - (ddsX_pincontrol_phase_en is active) or the user can + There will be more than one out_altvoltageX_phaseY file, which + allows for pin controlled PSK Phase Shift Keying + (out_altvoltageX_pincontrol_phase_en is active) or the user can control the desired phase Y which is added to the phase - accumulator output by writing Y to the en_phase file. + accumulator output by writing Y to the phase_en file. -What: /sys/bus/iio/devices/.../ddsX_phaseY_scale +What: /sys/bus/iio/devices/.../out_altvoltageX_phaseY_scale KernelVersion: 2.6.37 Contact: linux-iio@vger.kernel.org Description: - Scale to be applied to ddsX_phaseY in order to obtain the - desired value in rad. If shared across all phase registers + Scale to be applied to out_altvoltageX_phaseY in order to obtain + the desired value in rad. If shared across all phase registers Y is not present. It is also possible X is not present if shared across all channels. -What: /sys/bus/iio/devices/.../ddsX_phasesymbol +What: /sys/bus/iio/devices/.../out_altvoltageX_phasesymbol KernelVersion: 2.6.37 Contact: linux-iio@vger.kernel.org Description: Specifies the active phase Y which is added to the phase accumulator output. The value corresponds to the Y in - ddsX_phaseY. To exit this mode the user can write - ddsX_pincontrol_phase_en or disable file. + out_altvoltageX_phaseY. To exit this mode the user can write + out_altvoltageX_pincontrol_phase_en or disable file. -What: /sys/bus/iio/devices/.../ddsX_pincontrol_en -What: /sys/bus/iio/devices/.../ddsX_pincontrol_freq_en -What: /sys/bus/iio/devices/.../ddsX_pincontrol_phase_en +What: /sys/bus/iio/devices/.../out_altvoltageX_pincontrol_en +What: /sys/bus/iio/devices/.../out_altvoltageX_pincontrol_frequency_en +What: /sys/bus/iio/devices/.../out_altvoltageX_pincontrol_phase_en KernelVersion: 2.6.37 Contact: linux-iio@vger.kernel.org Description: - ddsX_pincontrol_en: Both, the active frequency and phase is - controlled by the respective phase and frequency control inputs. - In case the device in question allows to independent controls, - then there are dedicated files (ddsX_pincontrol_freq_en, - ddsX_pincontrol_phase_en). + out_altvoltageX_pincontrol_en: Both, the active frequency and + phase is controlled by the respective phase and frequency + control inputs. In case the device in features independent + controls, then there are dedicated files + (out_altvoltageX_pincontrol_frequency_en, + out_altvoltageX_pincontrol_phase_en). -What: /sys/bus/iio/devices/.../ddsX_out_enable -What: /sys/bus/iio/devices/.../ddsX_outY_enable +What: /sys/bus/iio/devices/.../out_altvoltageX_out_enable +What: /sys/bus/iio/devices/.../out_altvoltageX_outY_enable KernelVersion: 2.6.37 Contact: linux-iio@vger.kernel.org Description: - ddsX_outY_enable controls signal generation on output Y of - channel X. Y may be suppressed if all channels are + out_altvoltageX_outY_enable controls signal generation on + output Y of channel X. Y may be suppressed if all channels are controlled together. -What: /sys/bus/iio/devices/.../ddsX_outY_wavetype +What: /sys/bus/iio/devices/.../out_altvoltageX_outY_wavetype KernelVersion: 2.6.37 Contact: linux-iio@vger.kernel.org Description: @@ -86,7 +89,7 @@ Description: For a list of available output waveform options read available_output_modes. -What: /sys/bus/iio/devices/.../ddsX_outY_wavetype_available +What: /sys/bus/iio/devices/.../out_altvoltageX_outY_wavetype_available KernelVersion: 2.6.37 Contact: linux-iio@vger.kernel.org Description: |