mirror of
https://github.com/shenmintao/aic8800d80.git
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155 lines
4.3 KiB
Markdown
155 lines
4.3 KiB
Markdown
# AIC8800 Linux Wi-Fi and Bluetooth Driver
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This driver is for the AIC8800D80 chipset, supported by devices such as the Tenda U11 and AX913B.
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> [!IMPORTANT]
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> **Choose the branch for your hardware revision before installing.** If the
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> driver log reports `chip_id=7, chip_mcu_id=1` on an AIC8800D80 or
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> AIC8800DC/DW device, use the
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> [`legacy-mcu1`](https://github.com/shenmintao/aic8800d80/tree/legacy-mcu1)
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> branch. It contains the matched legacy firmware and loader profile required
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> to avoid the deterministic firmware upload timeout at `0x170400`. Use
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> `main` when `chip_mcu_id=0` or when the MCU revision is unknown.
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>
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> Hardware revision takes precedence over the Bluetooth feature branch. MCU1
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> devices should remain on `legacy-mcu1`, which initializes Bluetooth for the
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> kernel's standard `btusb` driver. After switching branches, rerun
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> `sudo ./install.sh` and reboot; switching the Git branch alone does not
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> replace the firmware already installed under `/lib/firmware`.
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Added support for devices with Vendor ID 368B (tested).
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Tested on Linux kernel 6.16 with Ubuntu 25.04 and 6.1.0.27 with Debian 12.
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The same driver supports Wi-Fi-only adapters and Wi-Fi/Bluetooth combo
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adapters. On combo devices, `aic_load_fw` uploads the AIC firmware and the
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standard Linux `btusb` driver handles the Bluetooth HCI interface. The obsolete
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custom `aic_btusb` module is not used.
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### Disclaimer
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I did not develop this software, The code is sourced from the Tenda U11 driver. I only made some modifications to the code to adapt it to newer kernel versions. Apart from compilation issues, I am unable to address other problems.
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### Attention
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Before installing the driver, delete all aic8800-related folders under /lib/firmware. Using an incorrect firmware version may cause the system to freeze.
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### Installation Steps
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#### Method 1: [Quick Installation](INSTALL_SCRIPT.md) (Recommended)
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#### Method 2: Manual Installation
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#### Copy udev rules:
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Copy the aic.rules file to /usr/lib/udev/rules.d/:
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```bash
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sudo cp aic.rules /usr/lib/udev/rules.d/
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```
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#### Copy firmware:
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Copy the firmware directories from `./fw` to `/lib/firmware/`:
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```bash
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sudo cp -r ./fw/aic8800* /lib/firmware/
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```
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#### Navigate to the driver directory:
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Change to the drivers/aic8800 directory:
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```bash
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cd ./drivers/aic8800
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```
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#### Compile and Install the Driver:
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First, compile the driver:
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```bash
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make
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```
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Then, install the driver:
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```bash
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sudo make install
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```
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For any kernel updates, you'll need to reinstall the driver:
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```bash
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make clean
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make
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sudo make install
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```
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### Load the Driver
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After installation, load the driver with the following command:
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```bash
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sudo modprobe aic8800_fdrv
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```
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### Verify the Module is Active
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Check if the module is loaded correctly:
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```bash
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lsmod | grep aic
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```
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You should see output similar to:
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```bash
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aic8800_fdrv 536576 0
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cfg80211 1146880 1 aic8800_fdrv
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aic_load_fw 69632 1 aic8800_fdrv
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usbcore 348160 10 xhci_hcd,ehci_pci,usbhid,usb_storage,ehci_hcd,xhci_pci,uas,aic_load_fw,uhci_hcd,aic8800_fdrv
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```
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After that, plug in your USB wireless network card.
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### Verify Wi-Fi Device is Active
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To check if the Wi-Fi interface is recognized, run:
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```bash
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iwconfig
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```
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If the device is still not active, check the kernel logs for any errors related to the driver:
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```bash
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sudo dmesg
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```
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### Bluetooth on Combo Adapters
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Bluetooth support does not require a separate AIC transport module. After
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`aic_load_fw` initializes a combo adapter, the kernel automatically binds its
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Bluetooth interface to `btusb`. A Wi-Fi-only adapter does not expose that
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interface, so the Bluetooth path remains inactive.
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Verify the expected modules and controller with:
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```bash
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lsmod | grep -E 'aic_load_fw|aic8800_fdrv|btusb'
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lsusb -t
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bluetoothctl list
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```
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To scan after a controller appears:
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```bash
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bluetoothctl
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power on
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scan on
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```
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If Bluetooth is missing or reports HCI timeouts, run the read-only diagnostic
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script and attach its output together with the current boot log:
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```bash
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chmod +x diagnose_bt.sh
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sudo ./diagnose_bt.sh
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sudo journalctl -k -b --no-pager
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```
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The installer removes active references to the retired `aic_btusb` integration.
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It does not force-load `btusb` or globally change the Bluetooth rfkill state;
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normal kernel device matching and the user's system policy remain in control.
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