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The I2C_TRANSFER method is no longer optional

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This commit is contained in:
Gregory Nutt 2016-01-31 14:15:07 -06:00
parent 3ef9b14738
commit 2709652753
2 changed files with 0 additions and 20 deletions
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16
system/i2c/README.txt
View File

@ -39,7 +39,6 @@ must meet certain requirements:
each call to up_i2cinitialize() to free any resources and disable the I2C.
2. up_i2cinitialize must accept any interface number without crashing. It
must simply return NULL if the device is not supported.
3. The I2C driver must support the transfer method (CONFIG_I2C_TRANSFER=y).
The I2C tool is designed to be implemented as a NuttShell (NSH) add-on. Read
the apps/nshlib/README.txt file for information about add-ons.
@ -364,21 +363,6 @@ The I2C tools requires the following in your NuttX configuration:
NuttX is built as a protected, supervisor kernel (CONFIG_BUILD_PROTECTED
or CONFIG_BUILD_KERNEL).
3. I2C driver configuration
The CONFIG_I2C_TRANSFER option must also be set in your NuttX
configuration. This configuration is the defconfig file in your
configuration directory that is copied to the NuttX top-level
directory as .config when NuttX is configured.
CONFIG_I2C_TRANSFER=y
NOTE: CONFIG_I2C_TRANSFER adds extra methods to the I2C interface.
Not all I2C interfaces support these extra methods. If your platform's
I2C driver does not support these extra methods, then you cannot use
the I2C tool unless you extend the support in your platform I2C
driver.
I2C Tool Configuration Options
------------------------------

4
system/i2c/i2ctool.h
View File

@ -64,10 +64,6 @@
* CONFIG_I2CTOOL_DEFFREQ - Default frequency (default: 4000000)
*/
#ifndef CONFIG_I2C_TRANSFER
# error "CONFIG_I2C_TRANSFER is required in the configuration"
#endif
#ifndef CONFIG_I2CTOOL_MINBUS
# define CONFIG_I2CTOOL_MINBUS 0
#endif