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Nuttx added FIONSPACE and fixed FIONWRITE: had retuned the space and should have returned enqueued count

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This commit is contained in:
David Sidrane
2016-12-12 15:03:38 -10:00
committed by Lorenz Meier
parent 81d00e730a
commit 3ed0bfe0d8
2 changed files with 2 additions and 6 deletions
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4
src/modules/mavlink/mavlink_main.cpp
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@@ -893,9 +893,9 @@ Mavlink::get_free_tx_buf()
return 1500;
} else {
// No FIONWRITE on Linux
// No FIONSPACE on Linux todo:use SIOCOUTQ and queue size to emulate FIONSPACE
#if !defined(__PX4_LINUX) && !defined(__PX4_DARWIN)
(void) ioctl(_uart_fd, FIONWRITE, (unsigned long)&buf_free);
(void) ioctl(_uart_fd, FIONSPACE, (unsigned long)&buf_free);
#else
//Linux cp210x does not support TIOCOUTQ
buf_free = 256;