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| author | Marcel Moolenaar <marcel@FreeBSD.org> | 2003-09-11 23:06:42 +0000 |
|---|---|---|
| committer | Marcel Moolenaar <marcel@FreeBSD.org> | 2003-09-11 23:06:42 +0000 |
| commit | 8194412b8964d4bfb77866d3ac4ceadb27e80d7b (patch) | |
| tree | 0bacf5d5df77a2825660a1165c400033575725a0 /sys/conf/NOTES | |
| parent | 78f94aa95136605c7e67672b9416b97dea1e7723 (diff) | |
| download | src-8194412b8964d4bfb77866d3ac4ceadb27e80d7b.tar.gz src-8194412b8964d4bfb77866d3ac4ceadb27e80d7b.zip | |
Add support for using uart(4) for pulse capturing for the Pulse Per
Second (PPS) timing interface. The support is non-optional and by
default uses the DCD line signal as the pulse input. A compile-time
option (UART_PPS_ON_CTS) can be used to have uart(4) use the CTS line
signal.
Include <sys/timepps.h> in uart_bus.h to avoid having to add the
inclusion of that header in all source files.
Reviewed by: phk
Notes
Notes:
svn path=/head/; revision=119996
Diffstat (limited to 'sys/conf/NOTES')
| -rw-r--r-- | sys/conf/NOTES | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sys/conf/NOTES b/sys/conf/NOTES index a85846bf8a6d..e5ae8a411bb1 100644 --- a/sys/conf/NOTES +++ b/sys/conf/NOTES @@ -1465,6 +1465,10 @@ options CONSPEED=115200 # Speed for serial console # device uart +# Options for uart(4) +options UART_PPS_ON_CTS # Do time pulse capturing using CTS + # instead of DCD. + # The following hint should only be used for pure ISA devices. It is not # needed otherwise. Use of hints is strongly discouraged. hint.uart.0.at="isa" |