Hardware flow control bits
Merge branch 'upstream'
Merge branch 'master' of http://git.code.sf.net/p/nuttx/git
Merge branch 'master' of http://git.code.sf.net/p/nuttx/git into integration
Tracking NuttX config changes
Merge branch 'upstream' into hardware_flow_control
Merge branch 'hardware_flow_control' into integration
Removed stack checking from IO
Merged in upstream, took upstream UART driver without changes, needs re-evaluation (minor diffs to local version)
Merge branch 'integration' of github.com:PX4/NuttX into integration_uart
Enabled HW flow control
added MacOs files to gitignore, since our devs are already struggling enough
Merge branch 'integration' of github.com:PX4/NuttX
HACK: don't call the card-changed callback with interrupts disabled, as it means that timeouts don't work.
Added cmp command, from Andrew Tridgell
Added missing entry in nsh.h for cmd_cmp
Added support for FIONREAD and FIONWRITE, added input / output processing support for UART and CDCACM serial ports. Implemented by Mike Smith, Andrew Tridgell and Lorenz Meier
Merge branch 'master' of github.com:PX4/NuttX into integration_dma