Print GPIO pin configuration for humility gpio --input --with-config

 $ humility gpio --input -with-config --pins B:0,B:14,E:1
 humility: attached to 0483:3754:002F00174741500820383733 via ST-Link V3
 B:0  = 0 Analog:OutPushPull:LowSpeed:NoPull:AF0:Unlocked:InZero:OutZero
 B:14 = 1 Input:OutPushPull:HighSpeed:NoPull:AF5:Unlocked:InOne:OutZero
 E:1  = 0 Alternate:OutPushPull:VeryHighSpeed:NoPull:AF12:Unlocked:InZero:OutZero
 ```
 If no pins are specified, then the pin names, values and config settings
 are printeed one per line for all GPIO pins.

Author: lzrd

Cargo.lock

@@ -101,6 +101,7 @@ tlvc-text = {git = "https://github.com/oxidecomputer/tlvc"}
 vsc7448-info = { git = "https://github.com/oxidecomputer/vsc7448.git" }
 vsc7448-types = { git = "https://github.com/oxidecomputer/vsc7448.git" }
 ipcc-data = { git = "https://github.com/oxidecomputer/ipcc-rs" }
+stm32h7 = { version = "0.14", default-features = false }
 
 #
 # We depend on the oxide-stable branch of Oxide's fork of probe-rs to assure

Cargo.toml

@@ -9,6 +9,9 @@ hif.workspace = true
 clap.workspace = true
 anyhow.workspace = true
 parse_int.workspace = true
+lazy_static.workspace = true
+stm32h7 = { workspace = true, features = ["rt", "stm32h753"] }
+zerocopy.workspace = true
 
 humility-cli.workspace = true
 humility-cmd.workspace = true