thc_tic_pio_write(9)

💅 thc_tic_pio_write(9) — bestie's guide to poking the touch device

okay so this is a page straight out of the Kernel API Manual (yes, that manual, the kernel one, we're fancy now 🎀) and it's all about thc_tic_pio_write — the little function that writes data to your touch device via PIO. that's it. that's the whole vibe. let's get into it ✨

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🌸 NAME 🌸

thc_tic_pio_write — literally just Write data to touch device by PIO. no cap, that's the entire job description 🫶

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✨ SYNOPSIS ✨

int thc_tic_pio_write (struct thc_device *dev , const u32 address ,
       const u32 size , const u32 *buffer );

look at her. four arguments, returns an int, does exactly one thing. main character energy fr 💅

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💖 ARGUMENTS 💖

• dev — The pointer of THC private device context. this is your device's little home base, the context struct you gotta hand over 🏠
• address — Slave address for the PIO operation. this is where you're writing, iykyk 📍
• size — PIO write data size. how much you're writing, in case the name wasn't obvious bestie 😭
• buffer — The pointer of the write data buffer. this is the actual goods, the data itself 🍓

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🔥 RETURN 🔥

0 on success, other error codes on failed. that's it. 0 = slay, anything else = go check the error code bestie 💀

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🦋 SEE ALSO 🦋

the kernel file lives at ./drivers/hid/intel-thc-hid/intel-thc/intel-thc-dev.c — go read it if you're feeling brave 👑

and here's the whole friend group, all the siblings and cousins of this function, no one left out, periodt:

• thc_clear_state(9)
• thc_dev_init(9)
• thc_tic_pio_read(9)
• thc_tic_pio_write_and_read(9)
• thc_interrupt_config(9)
• thc_int_trigger_type_select(9)
• thc_interrupt_enable(9)
• thc_interrupt_quiesce(9)
• thc_set_pio_interrupt_support(9)
• thc_ltr_config(9)
• thc_change_ltr_mode(9)
• thc_ltr_unconfig(9)
• thc_int_cause_read(9)
• thc_interrupt_handler(9)
• thc_port_select(9)
• thc_spi_read_config(9)
• thc_spi_write_config(9)
• thc_spi_input_output_address_config(9)
• thc_i2c_subip_init(9)
• thc_i2c_subip_regs_save(9)
• thc_i2c_subip_regs_restore(9)
• thc_i2c_set_rx_max_size(9)
• thc_i2c_rx_max_size_enable(9)
• thc_i2c_set_rx_int_delay(9)
• thc_i2c_rx_int_delay_enable(9)

like, the whole squad. go say hi 🌈

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ngl if you're out here calling this with a bad buffer pointer that's on you, not on the docs, bestie 🙈

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and that's the page!! brought to you by ./drivers/hid/intel-thc-hid/in... (yeah the footer cut it off, iconic behavior honestly) dated October 2026, manual name thc_tic_pio_write(9). mwah, go write some touch data, you got this 💜🧚