fixed async/sync usage

examples/esp32c6-sync/Cargo.lock

@@ -7,6 +7,7 @@ name = "as7265x"
 version = "0.1.0"
 dependencies = [
  "embedded-hal 1.0.0",
+ "embedded-hal-async",
  "maybe-async",
 ]
 

examples/esp32c6-sync/Cargo.toml

@@ -1,21 +1,21 @@
 [package]
-edition      = "2024"
-name         = "esp32c6-sync"
+edition = "2024"
+name = "esp32c6-sync"
 rust-version = "1.88"
-version      = "0.1.0"
+version = "0.1.0"
 
 [[bin]]
 name = "esp32c6-sync"
 path = "./src/bin/main.rs"
 
 [dependencies]
-esp-hal = { version = "1.0.0", features = ["esp32c6","unstable"] }
+esp-hal = { version = "1.0.0", features = ["esp32c6", "unstable"] }
 
 esp-bootloader-esp-idf = { version = "0.4.0", features = ["esp32c6"] }
 
 critical-section = "1.2.0"
 
-as7265x = { path="../.." }
+as7265x = { path = "../..", features = ["sync"] }
 esp-println = { version = "0.16.1", features = ["esp32c6"] }
 
 
@@ -25,10 +25,10 @@ esp-println = { version = "0.16.1", features = ["esp32c6"] }
 opt-level = "s"
 
 [profile.release]
-codegen-units    = 1     # LLVM can perform better optimizations using a single thread
-debug            = 2
+codegen-units = 1        # LLVM can perform better optimizations using a single thread
+debug = 2
 debug-assertions = false
-incremental      = false
-lto              = 'fat'
-opt-level        = 's'
-overflow-checks  = false
+incremental = false
+lto = 'fat'
+opt-level = 's'
+overflow-checks = false