hw_r_phy(9)

💖 NAME 💖

Welcome to hw_r_phy(9) from the Kernel API Manual, bestie 💖 This is the routine whose whole job is to read data from a PHY register. That’s the name, that’s the mission, no cap.

✨ SYNOPSIS ✨

void hw_r_phy (struct ksz_hw *hw , int port , u16 reg , u16 *val );

🎀 ARGUMENTS 🎀

• hw — the hardware instance. Your main-character hardware struct 🫶
• port — the port to read. Gotta know which port we’re looking at.
• reg — the PHY register to read. This is the specific register in question, bestie.
• val — the buffer to store the read data. The read data goes here, iconic behavior 💅

🦋 DESCRIPTION 🦋

Okay so picture this: this routine reads data from the PHY register. That’s the whole plot. It’s void, so there’s no return value to catch — the read data goes into the val buffer you passed in. Simple, clean, lowkey essential ✨

🌈 SEE ALSO 🌈

The kernel file this lives in is ./drivers/net/ethernet/micrel/ksz884x.c, and the whole friend group is tagged in below — yes, every single one, because we do not leave anyone on read 💅

• Kernel file ./drivers/net/ethernet/micrel/ksz884x.c
• struct ksz_hw_desc(9)
• struct ksz_sw_desc(9)
• struct ksz_dma_buf(9)
• struct ksz_desc(9)
• struct ksz_desc_info(9)
• struct ksz_mac_table(9)
• struct ksz_vlan_table(9)
• struct ksz_port_mib(9)
• struct ksz_port_cfg(9)
• struct ksz_switch(9)
• struct ksz_port_info(9)
• struct ksz_hw(9)
• struct ksz_port(9)
• struct ksz_timer_info(9)
• struct ksz_shared_mem(9)
• struct ksz_counter_info(9)
• struct dev_info(9)
• struct dev_priv(9)
• hw_turn_on_intr(9)
• hw_block_intr(9)
• sw_r_table(9)
• sw_w_table_64(9)
• sw_w_sta_mac_table(9)
• sw_r_vlan_table(9)
• port_r_mib_cnt(9)
• port_r_mib_pkt(9)
• port_r_cnt(9)
• port_init_cnt(9)
• port_cfg(9)
• port_r8(9)
• port_r16(9)
• port_w16(9)
• sw_chk(9)
• sw_cfg(9)
• sw_cfg_broad_storm(9)
• sw_get_broad_storm(9)
• sw_dis_broad_storm(9)
• sw_ena_broad_storm(9)
• sw_init_broad_storm(9)
• hw_cfg_broad_storm(9)
• sw_dis_prio_rate(9)
• sw_init_prio_rate(9)
• sw_dis_diffserv(9)
• sw_dis_802_1p(9)
• sw_cfg_replace_null_vid(9)
• sw_cfg_replace_vid(9)
• sw_cfg_port_based(9)
• sw_dis_multi_queue(9)
• sw_init_prio(9)
• port_get_def_vid(9)
• sw_init_vlan(9)
• sw_cfg_port_base_vlan(9)
• sw_set_addr(9)
• sw_set_global_ctrl(9)
• port_set_stp_state(9)
• sw_clr_sta_mac_table(9)
• sw_init_stp(9)
• sw_block_addr(9)
• hw_w_phy(9)
• eeprom_read(9)
• eeprom_write(9)
• port_get_link_speed(9)
• port_set_link_speed(9)
• port_force_link_speed(9)
• hw_chk_wol_pme_status(9)
• hw_clr_wol_pme_status(9)
• hw_cfg_wol_pme(9)
• hw_cfg_wol(9)
• hw_set_wol_frame(9)
• hw_add_wol_arp(9)
• hw_add_wol_bcast(9)
• hw_add_wol_mcast(9)
• hw_add_wol_ucast(9)
• hw_enable_wol(9)
• hw_init(9)
• hw_reset(9)
• hw_setup(9)
• hw_setup_intr(9)
• hw_set_desc_base(9)
• hw_start_rx(9)
• hw_stop_rx(9)
• hw_start_tx(9)
• hw_stop_tx(9)
• hw_disable(9)
• hw_enable(9)
• hw_alloc_pkt(9)
• hw_send_pkt(9)
• hw_set_addr(9)
• hw_read_addr(9)
• hw_clr_multicast(9)
• hw_set_grp_addr(9)
• hw_set_multicast(9)
• hw_set_promiscuous(9)
• sw_enable(9)
• sw_setup(9)
• ksz_start_timer(9)
• ksz_stop_timer(9)
• ksz_alloc_soft_desc(9)
• ksz_alloc_desc(9)
• free_dma_buf(9)
• ksz_init_rx_buffers(9)
• ksz_alloc_mem(9)
• ksz_free_desc(9)
• ksz_free_buffers(9)
• ksz_free_mem(9)
• send_packet(9)
• transmit_cleanup(9)
• tx_done(9)
• netdev_tx(9)
• netdev_tx_timeout(9)
• netdev_intr(9)
• netdev_close(9)
• netdev_open(9)
• netdev_query_statistics(9)
• netdev_set_mac_address(9)
• netdev_set_rx_mode(9)
• netdev_ioctl(9)
• mdio_read(9)
• mdio_write(9)
• netdev_get_link_ksettings(9)
• netdev_set_link_ksettings(9)
• netdev_nway_reset(9)
• netdev_get_link(9)
• netdev_get_drvinfo(9)
• netdev_get_regs_len(9)
• netdev_get_regs(9)
• netdev_get_wol(9)
• netdev_set_wol(9)
• netdev_get_msglevel(9)
• netdev_set_msglevel(9)
• netdev_get_eeprom_len(9)
• netdev_get_eeprom(9)
• netdev_set_eeprom(9)
• netdev_get_pauseparam(9)
• netdev_set_pauseparam(9)
• netdev_get_ringparam(9)
• netdev_get_strings(9)
• netdev_get_sset_count(9)
• netdev_get_ethtool_stats(9)
• netdev_set_features(9)
• dev_monitor(9)
• netdev_init(9)

okay that’s the page, bestie — source/version ./drivers/net/ethernet/micrel, dated October 2026. stay iconic 💅✨