RIOT/sys/Makefile.dep

ifneq (,$(filter eepreg,$(USEMODULE)))
  FEATURES_REQUIRED += periph_eeprom
endif

ifneq (,$(filter i2c_scan,$(USEMODULE)))
  FEATURES_REQUIRED += periph_i2c
endif

ifneq (,$(filter prng_fortuna,$(USEMODULE)))
  CFLAGS += -DCRYPTO_AES
endif
sys/eepreg: Makefile support 2018-08-28 00:55:41 +02:00			`ifneq (,$(filter eepreg,$(USEMODULE)))`
			`FEATURES_REQUIRED += periph_eeprom`
			`endif`

shell: Add command i2c_scan Add a trivial shell program that scans for all slaves on an I2C bus by iterating all of the possible 127 I2C addresses and checking for the ACK of the device. 2019-03-22 17:50:08 +01:00			`ifneq (,$(filter i2c_scan,$(USEMODULE)))`
			`FEATURES_REQUIRED += periph_i2c`
			`endif`

sys: random: add fortuna PRNG 2018-03-12 21:48:24 +01:00			`ifneq (,$(filter prng_fortuna,$(USEMODULE)))`
			`CFLAGS += -DCRYPTO_AES`
			`endif`