1999-04-15  Jonathan Larmour  <jlarmour@cygnus.co.uk>

	* src/iosys.c (cyg_io_set_config): Only dereference len if non-NULL
	(cyg_io_get_config): Ditto
	(cyg_io_read): Ditto
	(cyg_io_write): Ditto
	Fix for PR 19856

1999-04-12  Jesper Skov  <jskov@cygnus.co.uk>

	* src/ioinit.cxx: Use new device IO init priority.

	* src/io_diag.c:      [added]
	* include/io_diag.h:  [added]
	* src/PKGconf.mak:
	Added io_diag functionality.

1999-03-18  Gary Thomas  <gthomas@cygnus.co.uk>

	* include/config_keys.h (CYG_IO_GET_CONFIG_SERIAL_ABORT): 
	New funtion which aborts (cancels) any pending I/O on a channel.

1999-03-15  Gary Thomas  <gthomas@cygnus.co.uk>

	* include/pkgconf/io.h: Add 'CYGDBG_IO_INIT' for control of
	init messages.

1999-03-10  Gary Thomas  <gthomas@cygnus.co.uk>

	* include/pkgconf/io.h: Improve CDL description.

1999-03-05  Nick Garnett  <nickg@cygnus.co.uk>

	* include/io.h:
	Changed include files used to permit non-kernel configurations to
	be built.

1999-02-25  Gary Thomas  <gthomas@cygnus.co.uk>

	* serial/current/src/common/tty.c (tty_set_config): 
	Fix problem when passing through to lower level driver.

//===========================================================================
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