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console: Kconfig: Update for recent changes

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Buffer sizes aren't required to be power of 2 for a while. Describe
that by setting buffers sizes to 0, one can get non interrupt driven
operation.

Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
This commit is contained in:
Paul Sokolovsky 2018-12-14 11:56:10 +03:00 • committed by Carles Cufí
commit 2ffb951630
1 changed files with 8 additions and 7 deletions
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15
subsys/console/Kconfig
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@ -33,18 +33,19 @@ config CONSOLE_GETCHAR_BUFSIZE
int "console_getchar() buffer size"
default 16
help
Buffer size for console_getchar(). Must be power of 2. The
default is optimized to save RAM. You may need to increase
it e.g. to support large host-side clipboard pastes.
Buffer size for console_getchar(). The default is optimized
to save RAM. You may need to increase it e.g. to support
large host-side clipboard pastes. Set to 0 to disable
interrupt-driven operation and use busy-polling.
config CONSOLE_PUTCHAR_BUFSIZE
int "console_putchar() buffer size"
default 16
help
Buffer size for console_putchar(). Must be power of 2. The
default is optimized to save RAM. You may need to increase
it e.g. to support large host-side clipboard pastes (with
echo).
Buffer size for console_putchar(). The default is optimized
to save RAM. You may need to increase it e.g. to support
large host-side clipboard pastes. Set to 0 to disable
interrupt-driven operation and use busy-polling.
endif # CONSOLE_GETCHAR