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37 lines
1.1 KiB
37 lines
1.1 KiB
# SPDX-License-Identifier: GPL-2.0-only |
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# |
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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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