From b90edc91346bb40ebdb8fc337b1b6a8bcefafcb9 Mon Sep 17 00:00:00 2001
From: Pete Dietl <petedietl@gmail.com>
Date: Tue, 23 Jan 2024 03:21:40 -0800
Subject: [PATCH] Change --help output to list all possible choices for --chip

Also, make the parsing of the argument to --chip be case-insensitive
---
 src/lib.rs  | 3 ++-
 src/main.rs | 2 +-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/lib.rs b/src/lib.rs
index 9b521fb..757f3b5 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -11,12 +11,13 @@ pub mod probe;
 pub mod regs;
 pub mod usb_device;
 
+use clap::ValueEnum;
 use probe::WchLink;
 
 pub use crate::error::{Error, Result};
 
 /// Currently supported RISC-V chip series/family
-#[derive(Clone, Copy, Debug, PartialEq, Eq)]
+#[derive(Clone, Copy, Debug, PartialEq, Eq, ValueEnum)]
 #[repr(u8)]
 pub enum RiscvChip {
     /// CH32V103 RISC-V3A series
diff --git a/src/main.rs b/src/main.rs
index 9dcaa4f..394f148 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -28,7 +28,7 @@ struct Cli {
     no_detach: bool,
 
     /// Specify the chip type, e.g. CH32V30X
-    #[arg(long, global = true)]
+    #[arg(long, global = true, ignore_case = true)]
     chip: Option<RiscvChip>,
 
     /// Connection Speed