Commit Graph

10 Commits

Author SHA1 Message Date
Gregory Nutt e9a5477506 Add an instance argument to the SPIDEV definitions. 2017-04-29 12:26:52 -06:00
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 3e7b2d617a All drivers that use SPI must call SPI_LOCK and SPI_UNLOCK. This is not optional. 2016-05-26 14:56:10 -06:00
Gregory Nutt 7edf921c5e Remove CONFIG_SPI_OWNBUS: Now it is not just a good idea, it is the law 2016-01-23 18:54:36 -06:00
Gregory Nutt f6e49caba8 All SPI-based device drivers needs to call SPI_HWFEATURES() with zero in order to co-exist with drivers that use H/W features 2016-01-23 16:18:13 -06:00
Gregory Nutt cf14f8d1b5 drivers/: Fixes to spacing and alignement 2015-10-10 10:41:00 -06:00
Alan Carvalho de Assis 3a8b00f09f max31855 driver fix from Alan Carvalho de Assis 2015-09-14 07:47:21 -06:00
Alan Carvalho de Assis c4cf5be231 Add support to Maxim MAX31855 Thermocouple-to-Digital 2015-09-13 15:56:48 -06:00