rt2x00usb_watchdog(9)

💅 rt2x00usb_watchdog(9) — Kernel API Manual

okay bestie, so we're in the Kernel API Manual today and the main character is rt2x00usb_watchdog. yes it's a (9) page, yes that means kernel-doc, no you don't need to panic 🫶

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✨ NAME ✨

rt2x00usb_watchdog — the literal watchdog for USB communication 🐕🔥

like, it watches the USB comms. that's the whole vibe. iconic behaviour honestly.

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🎀 SYNOPSIS 🎀

void rt2x00usb_watchdog (struct rt2x00_dev *rt2x00dev );

returns void, so no return-value drama here, we love a function that just does the thing and leaves 💅

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🦋 ARGUMENTS 🦋

• rt2x00dev — pointer to struct rt2x00_dev. that's it, that's the whole arg list. it's giving "one (1) parameter, no notes" ✨

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🌸 DESCRIPTION 🌸

so what does it actually do? it checks the health of the USB communication and works out whether any timeouts have occurred 👀

and if timeouts did happen? bestie, it goes full main-character: it resets all communication to restore functionality again 💀➡️💖

like, the whole link is acting up, and this function is the one that hits the reset and gets everything talking again. no cap, that's the job. 🔥

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🌈 SEE ALSO 🌈

the friend group, in order, as listed — every single one, we do not skip the homies:

• Kernel file ./drivers/net/wireless/ralink/rt2x00/rt2x00usb.h
• enum rt2x00usb_vendor_request(9)
• enum rt2x00usb_mode_offset(9)
• rt2x00usb_vendor_request(9)
• rt2x00usb_vendor_request_buff(9)
• rt2x00usb_vendor_request_sw(9)
• rt2x00usb_eeprom_read(9)
• rt2x00usb_register_read(9)
• rt2x00usb_register_read_lock(9)
• rt2x00usb_register_multiread(9)
• rt2x00usb_register_write(9)
• rt2x00usb_register_write_lock(9)
• rt2x00usb_register_multiwrite(9)
• rt2x00usb_regbusy_read(9)
• rt2x00usb_register_read_async(9)
• struct queue_entry_priv_usb(9)
• struct queue_entry_priv_usb_bcn(9)
• rt2x00usb_kick_queue(9)
• rt2x00usb_flush_queue(9)

yes the enums are listed too, we respect the enums 🧚💜

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and that's the page!! source/version vibes: ./drivers/net/wireless/ralink/... dated October 2026, from the same people who brought you rt2x00usb_watchdog(9) 💖 mwah, go keep your USB comms healthy bestie 🎀⭐