STRUCT FW_CDEV_DEALLOCATE(9)

💅 struct fw_cdev_deallocate(9) — the Kernel API Manual glow-up ✨

okay so bestie, welcome to the Kernel API Manual page for struct fw_cdev_deallocate(9) — yes that's the whole title, we're being fancy today 🎀 this is the little struct that says "bestie, I'm done with this thing, take it back" and honestly? iconic.

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🌸 NAME 🌸

struct fw_cdev_deallocate — free a CSR address range or an isochronous resource 🫶

Like, you allocated it, you had your fun, and now you're giving it back. Very responsible of you, tbh. main character energy.

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✨ SYNOPSIS ✨

struct fw_cdev_deallocate {
    __u32 handle;
 };

That's it. One (1) member. The way that minimalism ate 💅

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🌈 Members 🌈

• handle — the handle to the address range or iso resource, exactly as the kernel handed it to you back when the range or resource was allocated. Do not make one up, do not guess, do not "fix" it. The kernel gave you that handle, the kernel knows that handle, and this is the little field where you hand it right back 🙈

ngl if you pass something that isn't the handle the kernel gave you, that's a you problem, bestie. The page says "as returned by the kernel," so like… use that one 🍓

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🦋 SEE ALSO 🦋

the whole friend group, fr fr — all of these live in the kernel file ./include/uapi/linux/firewire-cdev.h:

• struct fw_cdev_event_common(9)
• struct fw_cdev_event_bus_reset(9)
• struct fw_cdev_event_response(9)
• struct fw_cdev_event_response2(9)
• struct fw_cdev_event_request(9)
• struct fw_cdev_event_request2(9)
• struct fw_cdev_event_request3(9)
• struct fw_cdev_event_iso_interrupt(9)
• struct fw_cdev_event_iso_interrupt_mc(9)
• struct fw_cdev_event_iso_resource(9)
• struct fw_cdev_event_phy_packet(9)
• struct fw_cdev_event_phy_packet2(9)
• union fw_cdev_event(9)
• struct fw_cdev_get_info(9)
• struct fw_cdev_send_request(9)
• struct fw_cdev_send_response(9)
• struct fw_cdev_allocate(9)
• struct fw_cdev_initiate_bus_reset(9)
• struct fw_cdev_add_descriptor(9)
• struct fw_cdev_remove_descriptor(9)
• struct fw_cdev_create_iso_context(9)
• struct fw_cdev_set_iso_channels(9)
• struct fw_cdev_iso_packet(9)
• struct fw_cdev_queue_iso(9)
• struct fw_cdev_start_iso(9)
• struct fw_cdev_stop_iso(9)
• struct fw_cdev_flush_iso(9)
• struct fw_cdev_get_cycle_timer(9)
• struct fw_cdev_get_cycle_timer2(9)
• struct fw_cdev_allocate_iso_resource(9)
• struct fw_cdev_send_stream_packet(9)
• struct fw_cdev_send_phy_packet(9)
• struct fw_cdev_receive_phy_packets(9)

like… that's the whole squad 😭 go read them, they're all right there.

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and that's the page, bestie! this little beauty comes to you straight out of ./include/uapi/linux, dated October 2026, and it's filed under struct fw_cdev_deallocate(9). periodt 💜✨ go forth and deallocate responsibly 🧚‍♀️👑