omap_control_usb_host_mode(9)

💅 omap_control_usb_host_mode — the Kernel API Manual, bestie edition ✨

okay so real talk, this is a page from the Kernel API Manual and it's about one tiny function that does one tiny thing, but it's iconic so let's get into it 🎀

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🌸 NAME 🌸

omap_control_usb_host_mode — sets AVALID, VBUSVALID and ID pin in grounded 💅

like, yes, that's the whole job. it's giving "small function, big responsibilities" energy fr fr.

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✨ SYNOPSIS ✨

void omap_control_usb_host_mode (struct omap_control_phy *ctrl_phy );

that's it. that's the whole signature. no cap. 🫶

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🦋 ARGUMENTS 🦋

• ctrl_phy — a struct omap_control_phy *. that's the only thing you hand it, and honestly? it's all it needs. main character parameter energy 👑

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🔥 DESCRIPTION 🔥

so what does it actually do, you ask? okay so it writes to the mailbox register 📬 to notify the usb core that a usb device has been connected. periodt. that's the vibe.

literally just: write to mailbox register → usb core finds out a device showed up → everyone slays 💖

it does not do more than that. don't come for it, it knows its lane. 🌈

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🧚 SEE ALSO 🧚

bestie you're gonna want the whole friend group, they're all linked:

• Kernel file ./drivers/phy/ti/phy-omap-control.c 📁 (the source herself)
• omap_control_pcie_pcs(9)
• omap_control_phy_power(9)
• omap_control_usb_device_mode(9)
• omap_control_usb_set_sessionend(9)
• omap_control_usb_set_mode(9)

go read them all, iykyk 💜

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lowkey reminder: ctrl_phy is a struct omap_control_phy * and nothing else, so don't try to get creative and pass something else. that's the whole bit. 🙈

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okay that's the page!! this lil gem lives under ./drivers/phy/ti, and the version stamp on it is October 2026, filed under omap_control_usb_host_mode(9) obviously 💅✨ thanks for coming to my ted talk, mwah 🍓🎀