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Our cyc_crc16() function is the same function as crc_itu_t() in the
Linux kernel. Import and use crc_itu_t() from the Kernel for
consistency.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Introduce three new RATP commands that allow getting and setting GPIO
values as well as configuring the direction of the GPIO pins.
Signed-off-by: Aleksander Morgado <aleksander@aleksander.es>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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Introduce two new RATP commands that allow running i2c read/write
operations, very similar in format to the already existing md/mw
RATP commands.
The messages are defined with a fixed 16-bit long register field, but
it will only be treated as a 16-bit address if I2C_FLAG_WIDE_ADDRESS
is set in the message flags field. If this flag is unset, the start
register address is assumed 8-bit long.
If the message includes the I2C_FLAG_MASTER_MODE flag, the start
register field is ignored and a i2c master send/receive operation is
performed.
Signed-off-by: Aleksander Morgado <aleksander@aleksander.es>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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ratp seems to send special characters which are not handle correctly
without CDMLINE_EDITING. Without this config, commands run via ratp will
have an erratic behavior and/or incorrect output.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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We are going to add new RATP command implementations in separate files
within this subdirectory.
Signed-off-by: Aleksander Morgado <aleksander@aleksander.es>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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