![]() ![]() Some companies even use different WiFi chips for different batches without ever explicitly mentioning which one you are about to get. In another comment, you mentioned you are using a TP Llink TL-wn722n, but TP Link just takes a WiFi (+ Bluetooth) chip, puts it on a PCB, encloses it in a case and sells it as a USB stick. Basically, the USB vendor and product ID should be indicative of what WiFi chip is being used. Ip link shows the available network interfaces after they have been set up, which means that the driver is functional at that point.Īlso mention which USB WiFi chip you are using. It will usually show you an error if it cannot initialize the device. Basically when you insert the USB device, you want to check dmesg to see what changed. if I attach my microphone together with some other USB devices, the microphone may not power on). This is possible if you exceed the available power budget of your USB hub/controller (e.g. If lsusb doesn't show you the device, it likely failed to power on. Lsusb lists the USB controllers and devices that are present in your system. Since you are dealing with USB devices, the output of lspci is not going to be relevant unless your USB controller is missing (USB controllers are often attached through PCIe). Lspci lists the PCIe devices attached to the PCIe bus communicating with the CPU.
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