Add support for a variadic ioctl() function.  The ioctl() interface is a non-standard, Unix interface.  NuttX has always used the older, three-parameter version.  Most contemporary systems now, however, use a variadic form of the ioctl() function.  Added an option to insert a shim layer to adapt the three-parameter ioctl() to use the variadic interface form.  Internally, the ioctl handling is the same three-parameter logic.  The only real complexity to the shim is in how the system calls must be handled.

Add an analog joystick driver.  Initial checkin is only a little more of a clone of the discrete joystick driver and is as-of-yet untested

This commit is a set of patches 02/11 through 03/11 correcting issues with the CC3000 networking (01/11 was committed separated).  Among these 10 patches:

03/11: CC3000 driver was getting stuck at recv() when remote host closed connection and application tried to read data from remotely shutdown socket. This patch adds proper handling for remotely closed socket event.

07/11: Socket state initialization was done in 'register', while it should be initialized in 'open' and deinitialized in 'close'. Old way caused problems when device is closed, power-cycled and then reopened as old socket state was left enabled.

08/11: Select thread was getting stuck after 'close, power-cycle, reopen', since selectsem was not properly setup and cleaned up.

09/11 'maxFD' was not properly reset in select worker and not checked for before calling cc3000_select().

10/11: After wlan_stop()/cc3000_close(), irqsem was left with count '-1'. Therefore on next wlan_start()/cc3000_open(), initial value for irqsem was wrong. Additional repeated wlan_start()/wlan_stop() decreased irqsem value further. Obviously this causes driver not to function correctly and freeze.

Patch moves initialization and destruction of waitsem, irqsem and readysem to cc3000_open/cc3000_close.

All are: Signed-off-by: Jussi Kivilinna <jussi.kivilinna@haltian.com>

Use usleep instead of usdelay as CONFIG_BOARD_LOOPSPERMSEC might not be calibrated correctly and CC3000 is fine with longer wait.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@haltian.com>

EFM32 Serial:  Add support for termios TCGET and TCSET.  For the moment, only set/get speed is implemetned.  From Pierre-noel Bouteville

Widen the name space: Rename CONFIG_SPI_EEPROM to CONFIG_EEPROM so that I2C EEPROMs can live there too