# Using Ubuntu as a workstation

## Enabling system wake-up from USB device

Run the following to get a list of your USB devices:

```bash
lsusb
```

The output should look like:

```
# ... more ...
Bus 004 Device 003: ID 05e3:0626 Genesys Logic, Inc. USB3.1 Hub
Bus 001 Device 002: ID 1d6b:0003 Linux Foundation 3.0 root hub
# ... more ...
```

In the above output, the hex numbers represent the vendor ID followed by the product ID, eg. `05e3` is the vendor ID (`idVendor`) for Genesys Logic and `0626` is the product ID (`idProduct`).

The files that store configurations for the above can be found at `/sys/bus/usb/devices`. To identify which directory in there contains the desired USB device (you will need to run these as `root`):

```bash
cd /sys/bus/usb/devices;
ls -1 \
  | grep -v '\:' \
  | xargs -I@ sh -c 'printf -- "@ == " && printf -- "$(cat @/idVendor):" && printf -- "$(cat @/idProduct)\n"'
```

The output should look like (intentionally matched with the `lsusb` output):

```
# ... more ...
4-1 == 05e3:0626
usb4 == 1d6b:0003
# ... more ...
```

Match the above output from `lsusb` with the most recent output and note the left value (eg. `4-1` refers to the Genesys Logic device)

Run the following to enable wake-up from the USB device:

```bash
echo enabled > /sys/bus/usb/devices/4-1/power/wakeup;
```

To enable persistence, put the above script in your `/etc/rc.local` as well.


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