twl_i2c_read(9)

💖 twl_i2c_read(9) — like, the iconic kernel API manual entry 💖

okay so welcome to the twl_i2c_read(9) page bestie!! this is the Kernel API Manual, and today's main character is a little function that literally just reads a register for you 🎀 ngl it's giving "small but crucial" energy and we're obsessed 💅

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✨ NAME ✨

twl_i2c_read — reads a n bit register in TWL4030/TWL5030/TWL60X0 🦋

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✨ SYNOPSIS ✨

int twl_i2c_read (u8 mod_no , u8 *value , u8 reg , unsigned num_bytes );

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✨ ARGUMENTS ✨

• mod_no — the module number, periodt 💜
• value — an array of num_bytes containing data to be read; this is where the good stuff lands 🍓
• reg — the register address (just offset will do, no need to overthink it bestie ✨)
• num_bytes — number of bytes to transfer, iykyk 🌸

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✨ DESCRIPTION ✨

Returns 0 on success or else a negative error code. that's it, that's the whole vibe check 😭 clean, simple, slay 🔥

fr fr always check that return value — a negative error code is NOT the moment to be delulu 🙈

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✨ SEE ALSO ✨

the kernel file ./drivers/mfd/twl-core.c (the source of truth, the blueprint, the blueprint-iest 💅) plus these sibling icons, all in their (9) era 👑:

• twl_get_regmap(9)
• twl_i2c_write(9)
• twl_set_regcache_bypass(9)
• twl_read_idcode_register(9)
• twl_get_type(9)
• twl_get_version(9)
• twl_get_hfclk_rate(9)

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okay that's the page!! this one came from ./drivers/mfd, dated October 2026, and it's twl_i2c_read(9) signing off — stay hydrated, read your registers, and remember: negative error codes are never a personality trait 💖✨🌈🫶