queues/tx-3/byte_queue_limits/limit_min queues/tx-3/byte_queue_limits/limit_max queues/tx-2/byte_queue_limits/hold_time
queues/tx-2/byte_queue_limits/limit_min queues/tx-2/byte_queue_limits/limit_max queues/tx-1/byte_queue_limits/hold_time queues/tx-1/byte_queue_limits/limit_min queues/tx-1/byte_queue_limits/limit_max queues/tx-0/byte_queue_limits/hold_time queues/tx-0/byte_queue_limits/limit_min queues/tx-0/byte_queue_limits/limit_max I have two threads for that, both call wpa_ctrl_open, the command thread calls wpa_ctrl_request, the event thread has an endless loop that calls poll passing wpa_ctrl_get_fd() descriptor and POLLIN event mask, followed by wpa_ctrl_pending and wpa_ctrl_recv.Īnd here's the list of files in /sys/class/net/wlan0. On the API level my code is straightforward. Currently, it initially shows minimal level (I know it's connected because STATUS command shows SSID), only after ~1 second I’m getting CTRL-EVENT-SCAN-RESULTS event from wpa_supplicant, run SCAN_RESULT command and update signal strength to the correct value. In my app’s GUI (the product will feature a touch screen), I render a phone-like status bar, that includes WiFi signal strength icon. Unless it’s the very first launch, Linux is already connected to Wi-Fi by then. My app is launched by systemd, After=multi-user.target. Another issue is minor visual glitch at application startup. Scan doesn’t find the network, therefore I’m not getting signal level this way. One reason I don’t like my current SCAN + SCAN_RESULT solution, it doesn’t work for hidden SSID networks. I'm using wpa_supplicant through a C API defined in wpa_ctrl.h header, interacting with the service through a pair of unix domain sockets (one for commands, another one for unsolicited events). This question is not about general computing hardware and software. The driver should already know that information (because connected, and adjusting transmit levels for energy saving), is there a way to just query for that? But that’s slow and error-prone, I'd like to do better. I can run SCAN afterwards, wait for results and search by SSID.
STATUS command only returns the following set of values: bssid, freq, ssid, id, mode, pairwise_cipher, group_cipher, key_mgmt, wpa_state, ip_address, p2p_device_address, address, uuid Is there a way to get signal level, in decibels or percents, of the wireless network I’m currently connected to?
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