fbtft_write_spi_emulate_9(9)

🦋 fbtft_write_spi_emulate_9(9) 🦋

okay so this is the Kernel API Manual page for fbtft_write_spi_emulate_9(9), and yes bestie we are getting into the 9-bit SPI emulation lore 💅✨

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💖 NAME 💖

fbtft_write_spi_emulate_9 — write SPI emulating 9-bit 🎀

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✨ SYNOPSIS ✨

int fbtft_write_spi_emulate_9 (struct fbtft_par *par , void *buf ,
size_t len );

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🫶 ARGUMENTS 🫶

• par — Driver data 👑
• buf — Buffer to write 🌸
• len — Length of buffer (must be divisible by 8) ⚠️

heads up bestie: len has to be divisible by 8. no cap, that part is literally required 😭

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🌈 DESCRIPTION 🌈

When 9-bit SPI is not available, this function can be used to emulate that. iconic workaround energy ✨

par->extra must hold a transformation buffer used for transfer. so like, that buffer needs to be there for the transfer to do its thing 🦋💜

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🔥 SEE ALSO 🔥

• Kernel file ./drivers/staging/fbtft/fbtft-io.c 📁
• ./drivers/staging/fbtft 🌟

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mwah 💋 sign-off time: this lil page comes from source/version ./drivers/staging/fbtft, dated October 2026, and it ate, periodt 🎀👑💅