xref: /OK3568_Linux_fs/kernel/Documentation/ABI/testing/sysfs-bus-iio-impedance-analyzer-ad5933 (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593SmuzhiyunWhat:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency_start
2*4882a593SmuzhiyunDate:		March 2019
3*4882a593SmuzhiyunKernelVersion:	3.1.0
4*4882a593SmuzhiyunContact:	linux-iio@vger.kernel.org
5*4882a593SmuzhiyunDescription:
6*4882a593Smuzhiyun		Frequency sweep start frequency in Hz.
7*4882a593Smuzhiyun
8*4882a593SmuzhiyunWhat:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency_increment
9*4882a593SmuzhiyunDate:		March 2019
10*4882a593SmuzhiyunKernelVersion:	3.1.0
11*4882a593SmuzhiyunContact:	linux-iio@vger.kernel.org
12*4882a593SmuzhiyunDescription:
13*4882a593Smuzhiyun		Frequency increment in Hz (step size) between consecutive
14*4882a593Smuzhiyun		frequency points along the sweep.
15*4882a593Smuzhiyun
16*4882a593SmuzhiyunWhat:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency_points
17*4882a593SmuzhiyunDate:		March 2019
18*4882a593SmuzhiyunKernelVersion:	3.1.0
19*4882a593SmuzhiyunContact:	linux-iio@vger.kernel.org
20*4882a593SmuzhiyunDescription:
21*4882a593Smuzhiyun		Number of frequency points (steps) in the frequency sweep.
22*4882a593Smuzhiyun		This value, in conjunction with the
23*4882a593Smuzhiyun		out_altvoltageY_frequency_start and the
24*4882a593Smuzhiyun		out_altvoltageY_frequency_increment, determines the frequency
25*4882a593Smuzhiyun		sweep range for the sweep operation.
26*4882a593Smuzhiyun
27*4882a593SmuzhiyunWhat:		/sys/bus/iio/devices/iio:deviceX/out_altvoltageY_settling_cycles
28*4882a593SmuzhiyunDate:		March 2019
29*4882a593SmuzhiyunKernelVersion:	3.1.0
30*4882a593SmuzhiyunContact:	linux-iio@vger.kernel.org
31*4882a593SmuzhiyunDescription:
32*4882a593Smuzhiyun		Number of output excitation cycles (settling time cycles)
33*4882a593Smuzhiyun		that are allowed to pass through the unknown impedance,
34*4882a593Smuzhiyun		after each frequency increment, and before the ADC is triggered
35*4882a593Smuzhiyun		to perform a conversion sequence of the response signal.
36