ice_get_pca9575_handle(9)
β¨ ice_get_pca9575_handle(9) β¨
okay bestie, welcome to the ice_get_pca9575_handle(9) manual page! this is from the Kernel API Manual and it's giving "find the little GPIO controller" energy. let's get into it π
π οΈ SYNOPSIS π οΈ
int ice_get_pca9575_handle (struct ice_hw *hw , u16 *pca9575_handle );
like, that's the whole function signature, no cap. it takes two args and returns an int. periodt.
π ARGUMENTS π
hwβ pointer to the hw struct. you know, the hardware struct. main character energy fr fr.pca9575_handleβ the GPIO controller's handle. this is where the found handle gets dropped off, iykyk.
π DESCRIPTION π
okay so here's the vibe: this function finds and returns the GPIO controller's handle in the netlist. when it's found β the value gets cached in the hw structure, and following calls will just return the cached value. like, it remembers so you don't have to ask twice. lowkey efficient. highkey iconic. π¦
ngl, caching is the moment. after the first find, subsequent calls are basically a vibe check that always passes.
π¦ RETURN π¦
0on success. slay! β-ENXIOwhen there's no PCA9575 present. π like, not found, bestie. the controller isn't there and the function is telling you in error-code language. no cap.
πΈ SEE ALSO πΈ
the kernel file is ./drivers/net/ethernet/intel/ice/ice_common.c β that's where the magic lives.
and okay, the SEE ALSO list is literally a whole friend group of functions, so let's list every single one because we don't skip anyone in this house π«Ά:
ice_dump_phy_type(9)ice_set_mac_type(9)ice_is_generic_mac(9)ice_clear_pf_cfg(9)ice_aq_manage_mac_read(9)ice_aq_get_phy_caps(9)ice_aq_get_link_topo_handle(9)ice_aq_get_netlist_node(9)ice_find_netlist_node(9)ice_is_media_cage_present(9)ice_get_media_type(9)ice_get_link_status_datalen(9)ice_aq_get_link_info(9)ice_fill_tx_timer_and_fc_thresh(9)ice_aq_set_mac_cfg(9)ice_init_fltr_mgmt_struct(9)ice_cleanup_fltr_mgmt_struct(9)ice_get_itr_intrl_gran(9)ice_wait_fw_load(9)ice_init_hw(9)ice_deinit_hw(9)ice_check_reset(9)ice_pf_reset(9)ice_reset(9)ice_copy_rxq_ctx_to_hw(9)ice_copy_rxq_ctx_from_hw(9)ice_pack_rxq_ctx(9)ice_unpack_rxq_ctx(9)ice_write_rxq_ctx(9)ice_read_rxq_ctx(9)ice_pack_txq_ctx(9)ice_pack_txq_ctx_full(9)ice_unpack_txq_ctx_full(9)ice_copy_txq_ctx_from_hw(9)ice_copy_txq_ctx_to_hw(9)ice_read_txq_ctx(9)ice_write_txq_ctx(9)ice_pack_txtime_ctx(9)ice_sbq_send_cmd(9)ice_sbq_rw_reg(9)ice_should_retry_sq_send_cmd(9)ice_sq_send_cmd_retry(9)ice_aq_send_cmd(9)ice_aq_get_fw_ver(9)ice_aq_send_driver_ver(9)ice_aq_q_shutdown(9)ice_aq_req_res(9)ice_aq_release_res(9)ice_acquire_res(9)ice_release_res(9)ice_aq_alloc_free_res(9)ice_alloc_hw_res(9)ice_free_hw_res(9)ice_get_num_per_func(9)ice_parse_common_caps(9)ice_recalc_port_limited_caps(9)ice_parse_vf_func_caps(9)ice_parse_vsi_func_caps(9)ice_parse_1588_func_caps(9)ice_parse_fdir_func_caps(9)ice_parse_func_caps(9)ice_func_id_to_logical_id(9)ice_parse_valid_functions_cap(9)ice_parse_vf_dev_caps(9)ice_parse_vsi_dev_caps(9)ice_parse_1588_dev_caps(9)ice_parse_fdir_dev_caps(9)ice_parse_sensor_reading_cap(9)ice_parse_nac_topo_dev_caps(9)ice_parse_dev_caps(9)ice_is_phy_rclk_in_netlist(9)ice_is_clock_mux_in_netlist(9)ice_is_cgu_in_netlist(9)ice_is_gps_in_netlist(9)ice_aq_list_caps(9)ice_discover_dev_caps(9)ice_discover_func_caps(9)ice_set_safe_mode_caps(9)ice_get_caps(9)ice_aq_manage_mac_write(9)ice_aq_clear_pxe_mode(9)ice_clear_pxe_mode(9)ice_aq_set_port_params(9)ice_is_100m_speed_supported(9)ice_get_link_speed_based_on_phy_type(9)ice_update_phy_type(9)ice_aq_set_phy_cfg(9)ice_update_link_info(9)ice_aq_get_phy_equalization(9)ice_aq_get_fec_stats(9)ice_cache_phy_user_req(9)ice_caps_to_fc_mode(9)ice_caps_to_fec_mode(9)ice_cfg_phy_fc(9)ice_set_fc(9)ice_phy_caps_equals_cfg(9)ice_copy_phy_caps_to_cfg(9)ice_cfg_phy_fec(9)ice_get_link_status(9)ice_aq_set_link_restart_an(9)ice_aq_set_event_mask(9)ice_aq_set_mac_loopback(9)ice_aq_set_port_id_led(9)ice_aq_get_port_options(9)ice_aq_set_port_option(9)ice_get_phy_lane_number(9)ice_aq_sff_eeprom(9)__ice_aq_get_set_rss_lut(9)ice_aq_get_rss_lut(9)ice_aq_set_rss_lut(9)__ice_aq_get_set_rss_key(9)ice_aq_get_rss_key(9)ice_aq_set_rss_key(9)ice_aq_add_lan_txq(9)ice_aq_dis_lan_txq(9)ice_aq_cfg_lan_txq(9)ice_aq_add_rdma_qsets(9)ice_aq_set_txtimeq(9)ice_get_lan_q_ctx(9)ice_ena_vsi_txq(9)ice_dis_vsi_txq(9)ice_cfg_vsi_qs(9)ice_cfg_vsi_lan(9)ice_cfg_vsi_rdma(9)ice_ena_vsi_rdma_qset(9)ice_dis_vsi_rdma_qset(9)ice_aq_get_cgu_input_pin_measure(9)ice_aq_get_cgu_abilities(9)ice_aq_set_input_pin_cfg(9)ice_aq_get_input_pin_cfg(9)ice_aq_set_output_pin_cfg(9)ice_aq_get_output_pin_cfg(9)ice_aq_get_cgu_dpll_status(9)ice_aq_set_cgu_dpll_config(9)ice_aq_set_cgu_ref_prio(9)ice_aq_get_cgu_ref_prio(9)ice_aq_get_cgu_info(9)ice_aq_set_phy_rec_clk_out(9)ice_aq_get_phy_rec_clk_out(9)ice_aq_get_sensor_reading(9)ice_replay_pre_init(9)ice_replay_vsi(9)ice_replay_post(9)ice_stat_update40(9)ice_stat_update32(9)ice_sched_query_elem(9)ice_aq_read_i2c(9)ice_aq_write_i2c(9)ice_read_pca9575_reg(9)ice_aq_set_gpio(9)ice_aq_get_gpio(9)ice_is_fw_api_min_ver(9)ice_fw_supports_link_override(9)ice_get_link_default_override(9)ice_is_phy_caps_an_enabled(9)ice_is_fw_health_report_supported(9)ice_aq_set_health_status_cfg(9)ice_aq_set_lldp_mib(9)ice_fw_supports_lldp_fltr_ctrl(9)ice_lldp_fltr_add_remove(9)ice_lldp_execute_pending_mib(9)ice_fw_supports_report_dflt_cfg(9)ice_get_link_speed(9)ice_get_dest_cgu(9)ice_read_cgu_reg(9)ice_write_cgu_reg(9)
like, that's the whole squad. every single one. no cap. πβ¨
π LICENSE π
this is copyrighted by Intel Corporation, 2020. and it's SPDX-License-Identifier: GPL-2.0. so yeah, open source, bestie. respect the license. π«Ά
okay that's the whole page! this manual page is sourced from ./drivers/net/ethernet/intel/ice, version October 2026, and the page is ice_get_pca9575_handle(9). thanks for reading, bestie β now go find that PCA9575 handle and slay! πβ¨ππ¦
π¦ where this page comes from
- nixpkgs unstable: linux-manual 7.3.1
- π girlified by deepseek-ai/DeepSeek-V4.1-Flash-1017 on : a language model's rewrite of the original, under its terms