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ab4f526058
Adding high-level "if PPS" makes lower-level dependency tests superfluous. Link: http://lkml.kernel.org/r/alpine.LFD.2.20.1708261050500.8156@localhost.localdomain Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Acked-by: Rodolfo Giometti <giometti@enneenne.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
37 lines
1.0 KiB
Plaintext
37 lines
1.0 KiB
Plaintext
#
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# PPS clients configuration
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#
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comment "PPS clients support"
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config PPS_CLIENT_KTIMER
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tristate "Kernel timer client (Testing client, use for debug)"
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help
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If you say yes here you get support for a PPS debugging client
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which uses a kernel timer to generate the PPS signal.
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This driver can also be built as a module. If so, the module
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will be called pps-ktimer.
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config PPS_CLIENT_LDISC
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tristate "PPS line discipline"
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depends on TTY
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help
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If you say yes here you get support for a PPS source connected
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with the CD (Carrier Detect) pin of your serial port.
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config PPS_CLIENT_PARPORT
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tristate "Parallel port PPS client"
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depends on PARPORT
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help
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If you say yes here you get support for a PPS source connected
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with the interrupt pin of your parallel port.
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config PPS_CLIENT_GPIO
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tristate "PPS client using GPIO"
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help
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If you say yes here you get support for a PPS source using
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GPIO. To be useful you must also register a platform device
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specifying the GPIO pin and other options, usually in your board
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setup.
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