xref: /linux/Documentation/ABI/testing/debugfs-moxtet (revision 2091b417aab195a2c35abe780ad15ade1b0932ac)
1*2091b417SMarek BehúnWhat:		/sys/kernel/debug/moxtet/input
2*2091b417SMarek BehúnDate:		March 2019
3*2091b417SMarek BehúnKernelVersion:	5.3
4*2091b417SMarek BehúnContact:	Marek Behún <marek.behun@nic.cz>
5*2091b417SMarek BehúnDescription:	(R) Read input from the shift registers, in hexadecimal.
6*2091b417SMarek Behún		Returns N+1 bytes, where N is the number of Moxtet connected
7*2091b417SMarek Behún		modules. The first byte is from the CPU board itself.
8*2091b417SMarek Behún		Example: 101214
9*2091b417SMarek Behún			 10: CPU board with SD card
10*2091b417SMarek Behún			 12: 2 = PCIe module, 1 = IRQ not active
11*2091b417SMarek Behún			 14: 4 = Peridot module, 1 = IRQ not active
12*2091b417SMarek Behún
13*2091b417SMarek BehúnWhat:		/sys/kernel/debug/moxtet/output
14*2091b417SMarek BehúnDate:		March 2019
15*2091b417SMarek BehúnKernelVersion:	5.3
16*2091b417SMarek BehúnContact:	Marek Behún <marek.behun@nic.cz>
17*2091b417SMarek BehúnDescription:	(RW) Read last written value to the shift registers, in
18*2091b417SMarek Behún		hexadecimal, or write values to the shift registers, also
19*2091b417SMarek Behún		in hexadecimal.
20*2091b417SMarek Behún		Example: 0102
21*2091b417SMarek Behún			 01: 01 was last written, or is to be written, to the
22*2091b417SMarek Behún			     first module's shift register
23*2091b417SMarek Behún			 02: the same for second module
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