diff --git a/hwd/src/main.rs b/hwd/src/main.rs
index 45710fb8cc..264bbc8c8e 100644
--- a/hwd/src/main.rs
+++ b/hwd/src/main.rs
@@ -16,7 +16,15 @@ fn acpi() -> Result<(), Box<dyn Error>> {
                         let vendor_1 = (((vendor_rev >> 10) & 0x1f) as u8 + 64) as char;
                         let vendor_2 = (((vendor_rev >> 5) & 0x1f) as u8 + 64) as char;
                         let vendor_3 = (((vendor_rev >> 0) & 0x1f) as u8 + 64) as char;
-                        format!("{}{}{}{:04X}", vendor_1, vendor_2, vendor_3, device)
+                        //TODO: simplify this nibble swap
+                        let device_1 = (device >> 4) & 0xF;
+                        let device_2 = (device >> 0) & 0xF;
+                        let device_3 = (device >> 12) & 0xF;
+                        let device_4 = (device >> 8) & 0xF;
+                        format!(
+                            "{}{}{}{:01X}{:01X}{:01X}{:01X}",
+                            vendor_1, vendor_2, vendor_3, device_1, device_2, device_3, device_4
+                        )
                     }
                     AmlSerdeValue::String(string) => string,
                     _ => {
@@ -24,7 +32,24 @@ fn acpi() -> Result<(), Box<dyn Error>> {
                         continue;
                     }
                 };
-                log::debug!("{}: {}", name, id);
+                let what = match id.as_str() {
+                    // https://uefi.org/specs/ACPI/6.5/05_ACPI_Software_Programming_Model.html
+                    "ACPI0006" => "GPE block device",
+                    "ACPI0010" => "Processor control device",
+                    // https://uefi.org/sites/default/files/resources/devids%20%285%29.txt
+                    "PNP0103" => "HPET",
+                    "PNP0303" => "IBM Enhanced (101/102-key, PS/2 mouse support)",
+                    "PNP0400" => "Standard LPT printer port",
+                    "PNP0501" => "16550A-compatible COM port",
+                    "PNP0A03" => "PCI bus",
+                    "PNP0A05" => "Generic ACPI bus",
+                    "PNP0A06" => "Generic ACPI Extended-IO bus (EIO bus)",
+                    "PNP0B00" => "AT real-time clock",
+                    "PNP0C0F" => "PCI interrupt link device",
+                    "PNP0F13" => "PS/2 port for PS/2-style mouse",
+                    _ => "?",
+                };
+                log::debug!("{}: {} ({})", name, id, what);
             }
         }
     }
@@ -36,8 +61,8 @@ fn main() {
         "misc",
         "hwd",
         "hwd",
-        log::LevelFilter::Info,
-        log::LevelFilter::Info,
+        log::LevelFilter::Debug,
+        log::LevelFilter::Debug,
     );
 
     //TODO: HWD is meant to locate PCI/XHCI/etc devices in ACPI and DeviceTree definitions and start their drivers