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[SERIAL] Update parity handling documentation 

Update documentation to match reality. INPCK controls whether input
parity checking is enabled.

Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
hifive-unleashed-5.1
Peter Korsgaard 2006-06-02 17:47:26 +01:00 committed by Russell King
parent ba8f5baba7
commit 89f3da3e06
1 changed files with 5 additions and 4 deletions
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9
Documentation/serial/driver
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@ -214,12 +214,13 @@ hardware.
The interaction of the iflag bits is as follows (parity error
given as an example):
Parity error INPCK IGNPAR
None n/a n/a character received
Yes n/a 0 character discarded
Yes 0 1 character received, marked as
n/a 0 n/a character received, marked as
TTY_NORMAL
Yes 1 1 character received, marked as
None 1 n/a character received, marked as
TTY_NORMAL
Yes 1 0 character received, marked as
TTY_PARITY
Yes 1 1 character discarded
Other flags may be used (eg, xon/xoff characters) if your
hardware supports hardware "soft" flow control.