spi_populate_tag_msg(9)

💖 spi_populate_tag_msg(9) 💖

okay bestie, welcome to the Kernel API Manual page for spi_populate_tag_msg(9) — the little function that places a tag message in a buffer. yes, that's the whole vibe 🎀

🌸 NAME 🌸

spi_populate_tag_msg — place a tag message in a buffer 💅

✨ SYNOPSIS ✨

int spi_populate_tag_msg (unsigned char *msg , struct scsi_cmnd *cmd );

🫶 ARGUMENTS 🫶

• msg — pointer to the area to place the tag. destination buffer energy, fr fr 🦋
• cmd — pointer to the scsi command for the tag. main character command, honestly 👑

📝 NOTES 📝

okay so this function is designed to create the correct type of tag message for the particular request. no cap ✨ It returns the size of the tag message. 🎀

heads up bestie: it may return 0 if TCQ is disabled for this device. so a zero is a real possibility, and now you know why 💀

🔗 SEE ALSO 🔗

Kernel file ./drivers/scsi/scsi_transport_spi.c — plus the besties spi_dv_device(9), spi_schedule_dv_device(9), and spi_display_xfer_agreement(9). go read those too, iykyk 🌈

mwah 💋 — page spi_populate_tag_msg(9), from ./drivers/scsi, October 2026. slay and bye 🦋