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uart: Document rw:XXX field of hw.uart.console

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Add a one-liner description of rw - Register Width added in eae36de826.

Fixes: eae36de826
Sponsored by:		Netflix
This commit is contained in:
Warner Losh 2024-10-11 13:31:31 -06:00
parent 852233cf76
commit 9bb56359e6
1 changed files with 1 additions and 0 deletions
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sys/dev/uart/uart_subr.c
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@ -185,6 +185,7 @@ uart_parse_tag(const char **p)
* mm = Memory mapped I/O address
* pa = Parity
* rs = Register shift
* rw = Register width
* sb = Stopbits
* xo = Device clock (xtal oscillator)
*