rgbkbd: Accept hex values

```
sudo framework_tool --rgbkbd 0 0xFF0000 0x00FF00 0x0000FF
```

Signed-off-by: Daniel Schaefer <dhs@frame.work>

Author: JohnAZoidberg

Cargo.lock

@@ -18,7 +18,7 @@ cross_freebsd = ["unix", "freebsd_pio"]
 # Windows does not have the cros_ec driver nor raw port I/O access to userspace
 windows = ["std", "smbios", "dep:windows", "win_driver", "raw_pio", "hidapi", "rusb", "dep:wmi"]
 smbios = ["dep:smbios-lib"]
-std = ["dep:clap", "dep:clap-verbosity-flag", "dep:env_logger", "smbios-lib?/std"]
+std = ["dep:clap", "dep:clap-num", "dep:clap-verbosity-flag", "dep:env_logger", "smbios-lib?/std"]
 rusb = ["dep:rusb"]
 hidapi = ["dep:hidapi"]
 uefi = [
@@ -51,6 +51,7 @@ regex = { version = "1.11.1", default-features = false }
 redox_hwio = { git = "https://github.com/FrameworkComputer/rust-hwio", branch = "freebsd", default-features = false }
 libc = { version = "0.2.155", optional = true }
 clap = { version = "4.5", features = ["derive"], optional = true }
+clap-num = { version = "1.2.0", optional = true }
 clap-verbosity-flag = { version = "2.2.1", optional = true }
 nix = { version = "0.29.0", features = ["ioctl", "user"], optional = true }
 num = { version = "0.4", default-features = false }

framework_lib/Cargo.toml

@@ -2,6 +2,7 @@
 //! This way we can use it in the regular OS commandline tool on Linux and Windows,
 //! as well as on the UEFI shell tool.
 use clap::Parser;
+use clap_num::maybe_hex;
 
 use crate::chromium_ec::commands::EC_RGBKBD_MAX_KEY_COUNT;
 use crate::chromium_ec::CrosEcDriverType;
@@ -150,7 +151,7 @@ struct ClapCli {
     /// <key> <RGB> [<RGB> ...]
     /// Example: 0 0xFF000 0x00FF00 0x0000FF
     #[clap(num_args = 2..EC_RGBKBD_MAX_KEY_COUNT)]
-    #[arg(long)]
+    #[arg(long, value_parser=maybe_hex::<u64>)]
     rgbkbd: Vec<u64>,
 
     /// Set tablet mode override