megadev_ioctl(9)

💅 megadev_ioctl — the kernel API manual, bestie edition 💅

okay so real talk, this whole page lives in the Kernel API Manual, and it's all about megadev_ioctl. Let's get into it ✨

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🌸 NAME 🌸

megadev_ioctl -

yeah. that's it. that's the whole name section. no description, no subtitle, nothing. the dash is just sitting there with main character energy and zero follow-through 😭 iconic, honestly.

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🦋 SYNOPSIS 🦋

int megadev_ioctl (struct file *filep , unsigned int cmd , unsigned long arg );

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🎀 ARGUMENTS 🎀

• filep — our device file 💖 like, our file, the one that belongs to this device, bestie.
• cmd — the ioctl command. the instruction. the vibe. 🔥
• arg — a user buffer. that's where the data lives before we go get it. 🫶

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✨ DESCRIPTION ✨

so this is the ioctl entry point for our private ioctl interface 👑 and here's the whole glow-up routine: first we move the data in from the user space, then we prepare the command — and ngl, "prepare" sometimes means converting the old MIMD ioctl into a new ioctl command, so yeah, we're doing a little outfit change mid-process 💅 — and then we issue a synchronous command to the controller. slay. that's the whole flow. no cap.

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💜 SEE ALSO 💜

Kernel file ./drivers/scsi/megaraid.c — and omg the extended friend group, everyone's here, group chat is POPPIN':

• mega_setup_mailbox(9)
• mega_runpendq(9)
• mega_allocate_scb(9)
• mega_get_ldrv_num(9)
• mega_build_cmd(9)
• mega_prepare_passthru(9)
• mega_prepare_extpassthru(9)
• issue_scb(9)
• issue_scb_block(9)
• megaraid_isr_iomapped(9)
• megaraid_isr_memmapped(9)
• mega_cmd_done(9)
• megaraid_abort_and_reset(9)
• mega_allocate_inquiry(9)
• proc_show_config(9)
• proc_show_stat(9)
• proc_show_mbox(9)
• proc_show_rebuild_rate(9)
• proc_show_battery(9)
• proc_show_pdrv(9)
• proc_show_pdrv_ch0(9)
• proc_show_pdrv_ch1(9)
• proc_show_pdrv_ch2(9)
• proc_show_pdrv_ch3(9)
• proc_show_rdrv(9)
• proc_show_rdrv_10(9)
• proc_show_rdrv_20(9)
• proc_show_rdrv_30(9)
• proc_show_rdrv_40(9)
• mega_create_proc_entry(9)
• mega_init_scb(9)
• megadev_open(9)
• mega_m_to_n(9)
• mega_is_bios_enabled(9)
• mega_enum_raid_scsi(9)
• mega_get_boot_drv(9)
• mega_support_random_del(9)
• mega_support_ext_cdb(9)
• mega_del_logdrv(9)
• mega_get_max_sgl(9)
• mega_support_cluster(9)
• mega_adapinq(9)
• mega_internal_dev_inquiry(9)
• mega_internal_command(9)

the way that list just keeps going 😭 not a single one left out, we don't do that here 💀

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lowkey a whole crowd, but every single one of them is linked and accounted for, so don't come for me 🫶

anywayyy that's the page!! this lil doc came from ./drivers/scsi and it's dated October 2026, so jot that down bestie 🗓️💖 byeeee ✨🎀🦋