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This reverts commit 5aeedc4f3a3c3fcfffb0cd4a474f5faa75053839, reversing
changes made to 3d80e414ff6c03ff04fecb914e7aa9b3fb535e03.
This merge breaks every uart driver in all BSPs. @bright-pan , is there
any way to get this done without breaking existing code?
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Add hardware flow support.
Use new struct serial_ringbuffer.
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This reverts commit 07bd09fc0fc256e5c53ad3c6157802fd94c9910c.
The validation of the context is done with in `rt_set_errno`. So it's
safe to call it here.
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The errno is associated with threads. It will crash the thread if we set
it in interrupt context.
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Return early if the size is 0 as there is nothing to do.
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*buffer) with buffer pointer
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git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2433 bbd45198-f89e-11dd-88c7-29a3b14d5316
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git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2387 bbd45198-f89e-11dd-88c7-29a3b14d5316
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git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2382 bbd45198-f89e-11dd-88c7-29a3b14d5316
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1, Tabs to Spaces
2, File Format(CR/LF) using UNIX style
3, maximum line length = 80
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2281 bbd45198-f89e-11dd-88c7-29a3b14d5316
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and re-format the coding style
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2247 bbd45198-f89e-11dd-88c7-29a3b14d5316
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git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2199 bbd45198-f89e-11dd-88c7-29a3b14d5316
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and implement the example in MB9BF506R branch
git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2145 bbd45198-f89e-11dd-88c7-29a3b14d5316
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