thc_dma_write(9)

🎀 NAME 🎀

thc_dma_write — okay so bestie, this is the function that uses TXDMA to write data to the touch device. That's the whole assignment. It's thc_dma_write(9) from the Kernel API Manual, and she's iconic. 💅

✨ SYNOPSIS ✨

No cap, here's the signature exactly as it appears — copy it, don't freestyle it:

int thc_dma_write (struct thc_device *dev , void *buffer , size_t
buf_len );

🌸 ARGUMENTS 🌸

• dev — the pointer of the THC private device context. Main-character pointer energy, fr fr. 🫶
• buffer — the pointer of the write data buffer. It's giving "the data lives here," iykyk. ✨
• buf_len — the write data length. Literally the length of the write data. No cap. 📏

🔥 RETURN 🔥

Success returns 0. Failure returns other error codes on failed — that's the return tea, and we're not adding extra lore. Periodt. 👑😭

🦋 SEE ALSO 🦋

• Kernel file: ./drivers/hid/intel-thc-hid/intel-thc/intel-thc-dma.c — go read the source, iykyk. 📂
• thc_dma_set_max_packet_sizes(9) 🌟
• thc_dma_allocate(9) 🌈
• thc_dma_release(9) 🦋
• thc_dma_configure(9) ⭐
• thc_dma_unconfigure(9) 🍓
• thc_rxdma_reset(9) 🧚
• thc_rxdma_read(9) 💜
• thc_swdma_read(9) 🙈

okay that's the whole page, mwah 💋 — the footer/source-version bit says ./drivers/hid/intel-thc-hid/in..., and the date is October 2026. thc_dma_write(9) out. 🎀