Anime: Better prevent await blocking. Prevent Slash taking over anime USB dev

rog-slash/src/data.rs

@@ -13,6 +13,7 @@ use crate::error::SlashError;
 pub enum SlashType {
     GA403,
     Unknown,
+    Unsupported,
 }
 
 impl FromStr for SlashType {

rog-slash/src/usb.rs

@@ -35,8 +35,7 @@ pub fn get_slash_type() -> Result<SlashType, SlashError> {
     if board_name.contains("GA403") {
         return Ok(SlashType::GA403);
     }
-    log::warn!("AniMe Slash device found but not yet supported, will default to a GA403 layout");
-    Ok(SlashType::Unknown)
+    Ok(SlashType::Unsupported)
 }
 
 /// Get the two device initialization packets. These are required for device