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The driver defines the I2C packet layout using C bitfields in struct mms114_touch. This is not portable as the layout of bitfields within a byte is compiler-dependent and varies with endianness. On Big Endian systems, the fields will be parsed incorrectly. Fix this by redefining struct mms114_touch with plain u8 fields and introducing bitwise macros to extract the values portably. Reported-by: sashiko-bot@kernel.org Assisted-by: Antigravity:gemini-3.5-flash Link: https://patch.msgid.link/20260704060115.353049-2-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>