ufshcd_dwc_link_is_up(9)

💖 ufshcd_dwc_link_is_up(9) 💖

okay so bestie, welcome to the Kernel API Manual — this one's a lil function from the UFS host driver world, and it's literally just here to answer one question: is the link up or not? 👀

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✨ NAME ✨

ufshcd_dwc_link_is_up — check if link is up. that's it. that's the whole job. slay 💅

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🦋 SYNOPSIS 🦋

int ufshcd_dwc_link_is_up (struct ufs_hba *hba );

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🎀 ARGUMENTS 🎀

• hba — private structure pointer 🫶 (yes it's just the UFS host bus adapter's own lil private struct, no cap)

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🔥 RETURN 🔥

• 0 on success ✅
• non-zero value on failure ❌

ngl that's the whole vibe check: zero means we good, anything else means something's giving unwell 😭

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🌈 SEE ALSO 🌈

• Kernel file ./drivers/ufs/host/ufshcd-dwc.c 📁
• ufshcd_dwc_program_clk_div(9)
• ufshcd_dwc_connection_setup(9)
• ufshcd_dwc_link_startup_notify(9)

go read those too, iykyk 💜

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and that's the page bestie! 🧚 this lil drop came from ./drivers/ufs/host, dated October 2026 — iconic, periodt. 🌸👑