sdio_retune_release(9)

💅 sdio_retune_release(9) 💅

okay bestie, welcome to sdio_retune_release(9) from the Kernel API Manual — yes, we're in kernel-API group-chat territory, and this page is short but iconic. 🎀

🌸 NAME 🌸

sdio_retune_release — signal that it's OK to retune now ✨

🦋 SYNOPSIS 🦋

void sdio_retune_release (struct sdio_func *func );

🍓 ARGUMENTS 🍓

• func — the SDIO function attached to host. like, the function that's vibing on the host. 🫶

✨ DESCRIPTION ✨

okay so this one is the complement to sdio_retune_hold_now — the "okay you can go back to normal scheduling now" bestie. Calling sdio_retune_release does not make a retune happen right away; it just allows retunes to be scheduled normally again. no instant magic, just permission. 💅

the rule: this function should be called while the host is claimed. periodt. 🫶

🔥 SEE ALSO 🔥

the kernel file is ./drivers/mmc/core/sdio_io.c, and the whole squad is:

• sdio_claim_host(9)
• sdio_release_host(9)
• sdio_enable_func(9)
• sdio_disable_func(9)
• sdio_set_block_size(9)
• sdio_align_size(9)
• sdio_readb(9)
• sdio_writeb(9)
• sdio_writeb_readb(9)
• sdio_memcpy_fromio(9)
• sdio_memcpy_toio(9)
• sdio_readsb(9)
• sdio_writesb(9)
• sdio_readw(9)
• sdio_writew(9)
• sdio_readl(9)
• sdio_writel(9)
• sdio_f0_readb(9)
• sdio_f0_writeb(9)
• sdio_get_host_pm_caps(9)
• sdio_set_host_pm_flags(9)
• sdio_retune_crc_disable(9)
• sdio_retune_crc_enable(9)
• sdio_retune_hold_now(9)

mwah 💖 source/version vibes: ./drivers/mmc/core; date: October 2026; manual: sdio_retune_release(9) — that's the whole footer, slay. 🌈👑