This reverts commit b9ace36fcc.
This change was added by PR 625 but has a serious logic flaw. It removes all occurrences of INCDIROPT and replaces it with a definition in tools/Config.mk:
else ifeq ($(WINTOOL),y)
DEFINE = "$(TOPDIR)/tools/define.sh"
INCDIR = "$(TOPDIR)/tools/incdir.sh" -w
This logic flaw is the Config.mk is included in all Make.defs files BEFORE WINTOOL is defined. As a result, the definition is wrong in many places when building under Cygwin with a Windows native toolchain.
Feature pca9540bdp i2cmultiplexer
* Implement common i2c multiplexer abstraction to be reused by i2c multiplexer devices. Provide common interface with transfer and reset calls to set up virtual i2c busses.
* Remove i2cmux_lower_half.c and headers, will be implemented by each mux driver
* Implement PCA9540BDP I2C multiplexer lower half which uses the common i2c mux abstraction
* Remove application interface and implement common i2c functions
* Remove application interface from pca driver and implement common i2c functions directly in the pca driver
* Use i2cerr
Approved-by: Gregory Nutt <gnutt@nuttx.org>
