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authorQuan Nguyen <quan@os.amperecomputing.com>2021-05-19 14:49:28 +0700
committerWolfram Sang <wsa@kernel.org>2021-06-25 17:09:34 +0200
commit87cf5127968ab3c543ebd98253052b928f9b47da (patch)
tree31c4a20b3f7ce890394795b0188ef86ce0741371 /include/linux/i2c.h
parent31df7195b100f7e7b7ac07675d93b3b504400fe9 (diff)
i2c: core-smbus: Expose PEC calculate function for generic use
Expose the PEC calculation i2c_smbus_pec() for generic use. Signed-off-by: Quan Nguyen <quan@os.amperecomputing.com> Acked-by: Matt Johnston <matt@codeconstruct.com.au> Signed-off-by: Wolfram Sang <wsa@kernel.org>
Diffstat (limited to 'include/linux/i2c.h')
-rw-r--r--include/linux/i2c.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 953a4eecb88f..685f8c73d99e 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -148,6 +148,7 @@ s32 __i2c_smbus_xfer(struct i2c_adapter *adapter, u16 addr,
/* Now follow the 'nice' access routines. These also document the calling
conventions of i2c_smbus_xfer. */
+u8 i2c_smbus_pec(u8 crc, u8 *p, size_t count);
s32 i2c_smbus_read_byte(const struct i2c_client *client);
s32 i2c_smbus_write_byte(const struct i2c_client *client, u8 value);
s32 i2c_smbus_read_byte_data(const struct i2c_client *client, u8 command);