sas_get_port_device(9)

✨ sas_get_port_device(9) ✨

okay bestie, this is the Kernel API Manual entry for sas_get_port_device(9), and we are about to make device discovery make sense. no cap. 🫶

🌸 NAME 🌸

sas_get_port_device — discover devices which caused port creation 👑

🦋 SYNOPSIS 🦋

int sas_get_port_device (struct asd_sas_port *port );

🎀 ARGUMENTS 🎀

• port — pointer to struct sas_port of interest. (and yes, the synopsis says struct asd_sas_port *port — both of those exact names are in the original, so don't come for me 💅)

🔥 DESCRIPTION 🔥

okay so here's the actual tea, and it's iconic:

• Devices directly attached to a HA port have no parent. This is how we know they are (domain) "root" devices. 🌱
• All other devices do, and should have their "parent" pointer set appropriately as soon as a child device is discovered. 🔗

🌈 SEE ALSO 🌈

go give these a read, bestie — they're all part of the same main-character discovery arc:

• Kernel file ./drivers/scsi/libsas/sas_discover.c
• sas_discover_end_dev(9)
• sas_discover_domain(9)
• sas_init_disc(9)

okay bye bestie! 🫶 this page comes from the ./drivers/scsi/libsas source/version and is dated October 2026 — mwah, stay slaying 💅✨