phy_can_wakeup(9)

💅 phy_can_wakeup(9) — like, the wakeup-capability vibe check for your PHY 🫶

okay so this is a page from the Kernel API Manual, bestie, and it's about one single tiny function that answers one single tiny question: can this PHY wake stuff up? that's it. that's the whole gig. ✨

---

✨ NAME ✨

phy_can_wakeup — tells you whether the PHY has driver-model wakeup capabilities 💤

---

🌸 SYNOPSIS 🌸

bool phy_can_wakeup (struct phy_device *phydev );

like, you hand it a phydev and it hands you back a bool. transactional. iconic. 🎀

---

🦋 ARGUMENTS 🦋

• phydev — the struct phy_device, aka the little guy you're asking about. that's the whole argument list, no hidden extras, no cap 💅

---

⭐ RETURN ⭐

it gives you true/false depending on the PHY driver's device_set_wakeup_capable setting. so the answer literally comes straight from whatever the driver set. you're not getting an opinion, you're getting the driver's receipts 🔥

---

👑 SEE ALSO 👑

the whole friend group, fr fr — and yes, the kernel file is . / include/linux/phy.h:

• enum phy_interface_t(9)
• phy_modes(9)
• rgmii_clock(9)
• struct mdio_bus_stats(9)
• struct mii_bus(9)
• mdiobus_alloc(9)
• enum phy_state(9)
• struct phy_c45_device_ids(9)
• struct phy_oatc14_sqi_capability(9)
• struct phy_device(9)
• struct phy_tdr_config(9)
• enum link_inband_signalling(9)
• struct phy_plca_cfg(9)
• struct phy_plca_status(9)
• struct phy_led(9)
• struct phy_mse_capability(9)
• struct phy_mse_snapshot(9)
• struct phy_driver(9)
• phy_id_compare(9)
• phy_id_compare_vendor(9)
• phy_id_compare_model(9)
• phydev_id_compare(9)
• phy_is_started(9)
• phy_driver_is_genphy(9)
• phy_disable_eee_mode(9)
• phy_may_wakeup(9)
• phy_read(9)
• __phy_read(9)
• phy_write(9)
• __phy_write(9)
• __phy_modify_changed(9)
• phy_read_mmd_poll_timeout(9)
• __phy_set_bits(9)
• __phy_clear_bits(9)
• phy_set_bits(9)
• phy_clear_bits(9)
• __phy_set_bits_mmd(9)
• __phy_clear_bits_mmd(9)
• phy_set_bits_mmd(9)
• phy_clear_bits_mmd(9)
• phy_interrupt_is_valid(9)
• phy_polling_mode(9)
• phy_has_hwtstamp(9)
• phy_has_rxtstamp(9)
• phy_has_tsinfo(9)
• phy_has_txtstamp(9)
• phy_is_default_hwtstamp(9)
• phy_on_sfp(9)
• phy_interface_mode_is_rgmii(9)
• phy_interface_mode_is_8023z(9)
• phy_interface_is_rgmii(9)
• phy_is_pseudo_fixed_link(9)
• phy_module_driver(9)

and the header lives in the kernel file ./include/linux/phy.h — go say hi 💖

---

mwah 💋 that's the page! it's from ./include/linux, dated October 2026, and yes the manual name is phy_can_wakeup(9) in case you forgot already 🙈 go forth and wake things up responsibly, bestie 🧚‍♀️