0001 What: /sys/kernel/debug/moxtet/input
0002 Date: March 2019
0003 KernelVersion: 5.3
0004 Contact: Marek Behún <kabel@kernel.org>
0005 Description: (Read) Read input from the shift registers, in hexadecimal.
0006 Returns N+1 bytes, where N is the number of Moxtet connected
0007 modules. The first byte is from the CPU board itself.
0008
0009 Example::
0010
0011 101214
0012
0013 == =======================================
0014 10 CPU board with SD card
0015 12 2 = PCIe module, 1 = IRQ not active
0016 14 4 = Peridot module, 1 = IRQ not active
0017 == =======================================
0018
0019 What: /sys/kernel/debug/moxtet/output
0020 Date: March 2019
0021 KernelVersion: 5.3
0022 Contact: Marek Behún <kabel@kernel.org>
0023 Description: (RW) Read last written value to the shift registers, in
0024 hexadecimal, or write values to the shift registers, also
0025 in hexadecimal.
0026
0027 Example::
0028
0029 0102
0030
0031 == ================================================
0032 01 01 was last written, or is to be written, to the
0033 first module's shift register
0034 02 the same for second module
0035 == ================================================
