scsi_host_alloc(9)

✨ NAME ✨

hey bestie, welcome to the scsi_host_alloc(9) page from the Kernel API Manual 💖 — this one is literally about registering a scsi host adapter instance. Slay.

scsi_host_alloc — register a scsi host adapter instance.

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🦋 SYNOPSIS 🦋

okay so here’s the signature, no cap:

struct Scsi_Host * scsi_host_alloc (const struct scsi_host_template *sht , int privsize );

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🎀 ARGUMENTS 🎀

• sht — pointer to scsi host template. that’s the template bestie 🫶
• privsize — extra bytes to allocate for driver. yes, extra bytes for the driver, periodt ✨

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💅 NOTE 💅

so this function allocates a new Scsi_Host and performs basic initialization. iconic behavior honestly.

important vibe check: the host is not published to the scsi midlayer until scsi_add_host is called. do not skip that step, iykyk 😭

Return value: Pointer to a new Scsi_Host 👑

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🌈 SEE ALSO 🌈

if you wanna keep snooping, the kernel file ./drivers/scsi/hosts.c is right there, and the linked besties are:

• scsi_host_set_state(9)
• scsi_remove_host(9)
• scsi_add_host_with_dma(9)
• scsi_host_lookup(9)
• scsi_host_get(9)
• scsi_host_busy(9)
• scsi_host_put(9)
• scsi_queue_work(9)
• scsi_flush_work(9)
• scsi_host_complete_all_commands(9)
• scsi_host_busy_iter(9)

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mwah 💋 signed off from ./drivers/scsi, October 2026 🌸✨