ads131m_read_reg_unlocked(9)

✨ ads131m_read_reg_unlocked ✨

okay so bestie, welcome to the Kernel API Manual entry for ads131m_read_reg_unlocked — yes it's a mouthful, yes it's iconic, we move 💅

🎀 NAME 🎀

ads131m_read_reg_unlocked — literally just reads a single register from the device. one register. that's the whole vibe. 🦋

🌸 SYNOPSIS 🌸

int ads131m_read_reg_unlocked (struct ads131m_priv *priv , u8 reg , u16
*val );

💖 ARGUMENTS 💖

• priv — the device private data structure, aka the whole personality of the device, slay 🫶
• reg — the 8-bit register address. 8 bits. tiny. precious. 🎀
• val — pointer to store the 16-bit register value. yes 16-bit, not 8, don't come for me, that's just how it is ngl 💀

⭐ DESCRIPTION ⭐

so this function performs the full 3-cycle RREG operation with Input CRC. three whole cycles, bestie. it's giving commitment. let's break it down step by step like a little choreography 🧚

1. (Cycle 1) Sends the RREG command + Input CRC.
2. (Cycle 2) Sends NULL+CRC to retrieve the register data.
3. (Cycle 3) Sends NULL+CRC to retrieve STATUS and check for CRC_ERR.

no cap, that's the entire bit. cycle one asks, cycle two gets the actual data, cycle three grabs STATUS and does the CRC error vibe check. main character energy from a register read fr fr 🔥

🔥 RETURN 🔥

0 on success, or a negative error code. that's it, that's the deal. if it's not 0 just know something went sideways 😭

🌈 SEE ALSO 🌈

• Kernel file ./drivers/iio/adc/ti-ads131m02.c
• ads131m_tx_frame_unlocked(9)
• ads131m_rx_frame_unlocked(9)
• ads131m_check_status_crc_err(9)
• ads131m_write_reg_unlocked(9)
• ads131m_rmw_reg(9)
• ads131m_verify_output_crc(9)
• ads131m_adc_read(9)
• ads131m_hw_reset(9)
• ads131m_sw_reset(9)
• ads131m_reset(9)
• ads131m_hw_init(9)
• ads131m_parse_clock(9)

and that's the page bestie, no crumbs left 🍓 it lives over in ./drivers/iio/adc, dated October 2026, and it's filed under ads131m_read_reg_unlocked(9) — go read a register, ily, bye 👑💜