Ian Lepore a30555576c Add a new 'tr' (transfer) mode to i2c(8) to support more i2c controllers. ... Some i2c controller hardware does not provide a way to do individual START, REPEAT-START and STOP actions on the i2c bus. Instead, they can only do a complete transfer as a single operation. Typically they can do either START-data-STOP or START-data-REPEATSTART-data-STOP. In the i2c driver framework, this corresponds to the iicbus_transfer method. In the userland interface they are initiated with the I2CRDWR ioctl command. These changes add a new 'tr' mode which can be specified with the '-m' command line option. This mode should work on all hardware; when an i2c controller driver doesn't directly support the iicbus_transfer method, code in the i2c driver framework uses the lower-level START/REPEAT/STOP methods to implement the transfer. After this new mode has gotten some testing on various hardware, the 'tr' mode should probably become the new default mode. PR: 189914		2019-05-22 21:06:10 +00:00
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i2c.8	Add a new 'tr' (transfer) mode to i2c(8) to support more i2c controllers.	2019-05-22 21:06:10 +00:00
i2c.c	Add a new 'tr' (transfer) mode to i2c(8) to support more i2c controllers.	2019-05-22 21:06:10 +00:00
Makefile
Makefile.depend	DIRDEPS_BUILD: Update dependencies.	2017-10-31 00:07:04 +00:00