8 Commits

Author	SHA1	Message	Date
Jussi Kivilinna	dffb8a67e3	Add entropy pool and strong random number generator ... Entropy pool gathers environmental noise from device drivers, user-space, etc., and returns good random numbers, suitable for cryptographic use. Based on entropy pool design from *BSDs and uses BLAKE2Xs algorithm for CSPRNG output. Patch also adds /dev/urandom support for using entropy pool RNG and new 'getrandom' system call for getting randomness without file-descriptor usage (thus avoiding file-descriptor exhaustion attacks). The 'getrandom' interface is similar as 'getentropy' and 'getrandom' available on OpenBSD and Linux respectively.	2017-03-30 07:38:37 -06:00
Gregory Nutt	27bc1a2221	drivers/sensors: Change some *err() message to *info() messages if what was a *dbg() message does not indicate and error condition.	2016-06-11 18:21:49 -06:00
Gregory Nutt	a1469a3e95	Add CONFIG_DEBUG_ERROR. Change names of *dbg() * *err()	2016-06-11 15:50:49 -06:00
Gregory Nutt	f9053182d3	I2C: Remove setaddress method	2016-02-01 12:14:31 -06:00
Gregory Nutt	8c9bddf998	I2C: Eliminate the I2C_WRITE and I2C_READ macros	2016-02-01 08:57:22 -06:00
Gregory Nutt	3a781a2d3f	Remove I2C slave methods from I2C master interface; rename i2c_dev_s to i2c_master_s.	2016-01-30 08:36:47 -06:00
Gregory Nutt	ceb415204e	Move include/nuttx/i2c.h to include/nuttx/i2c/i2c_master.h	2016-01-30 08:00:16 -06:00
Alexander Entinger	75d6c4cee3	drivers/sensors/mcp9844: Driver for the MCP9844 I2C digital temperature sensor with a selectable resolution	2016-01-15 07:25:58 -06:00