a30555576c
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 |
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| bin | ||
| cddl | ||
| contrib | ||
| crypto | ||
| etc | ||
| gnu | ||
| include | ||
| kerberos5 | ||
| lib | ||
| libexec | ||
| release | ||
| rescue | ||
| sbin | ||
| secure | ||
| share | ||
| stand | ||
| sys | ||
| targets | ||
| tests | ||
| tools | ||
| usr.bin | ||
| usr.sbin | ||
| .arcconfig | ||
| .arclint | ||
| .cirrus.yml | ||
| .gitattributes | ||
| .gitignore | ||
| COPYRIGHT | ||
| LOCKS | ||
| MAINTAINERS | ||
| Makefile | ||
| Makefile.inc1 | ||
| Makefile.libcompat | ||
| Makefile.sys.inc | ||
| ObsoleteFiles.inc | ||
| README | ||
| README.md | ||
| UPDATING | ||
FreeBSD Source:
This is the top level of the FreeBSD source directory. This file
was last revised on:
FreeBSD
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include System include files.
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