usb_otg_state_string(9)

✨ usb_otg_state_string(9) ✨

okay so bestie, welcome to the Kernel API Manual 💅 this one's a lil function called usb_otg_state_string and honestly? it's giving translator. it's giving "i speak OTG enum so you don't have to." 🦋

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🌸 NAME 🌸

usb_otg_state_string — returns human readable name of OTG state.

like literally that's the whole gig. you hand it a state, it hands you back words a human can read. no cap. 💖

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🎀 SYNOPSIS 🎀

const char * usb_otg_state_string (enum usb_otg_state state );

that's it. one argument, one const char * coming back atcha. clean. iconic. main character energy. ✨

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💜 ARGUMENTS 💜

• state — the OTG state to return the human readable name of. and listen, because this is the important part: if it's not any of the states defined in usb_otg_state enum, then 'UNDEFINED' will be returned. bestie you WILL get 'UNDEFINED' and you WILL accept it. no guessing, no improvising, no vibes-based fallback. 🙈

ngl if you're seeing 'UNDEFINED' back, the vibe check on your state variable did not pass. just saying. 👀

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🧚 SEE ALSO 🧚

so here's the friend group 🫶 — the kernel file lives at ./drivers/usb/common/common.c, and it's surrounded by absolute legends:

• usb_ep_type_string(9)
• usb_speed_string(9)
• usb_get_maximum_speed(9)
• usb_get_maximum_ssp_rate(9)
• usb_state_string(9)
• usb_get_dr_mode_from_string(9)
• usb_get_role_switch_default_mode(9)
• usb_decode_interval(9)
• of_usb_get_dr_mode_by_phy(9)
• of_usb_host_tpl_support(9)
• of_usb_update_otg_caps(9)
• usb_of_get_companion_dev(9)

go read them. they're all slaying in their own lanes. 👑

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and that's the page, periodt. 💅 source/version situash: this beauty lives in ./drivers/usb/common, dated October 2026 — mwah, go forth and stringify your OTG states responsibly, bestie 🌈💖🎀