From 31f8d3b1edbe9dd965dba663e40c62c336fe7ca9 Mon Sep 17 00:00:00 2001
From: Sam Anthony <sam@samanthony.xyz>
Date: Thu, 14 Aug 2025 19:51:54 -0230
Subject: usb protocol

---
 doc/protocol | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)
 create mode 100644 doc/protocol

diff --git a/doc/protocol b/doc/protocol
new file mode 100644
index 0000000..ea9ecae
--- /dev/null
+++ b/doc/protocol
@@ -0,0 +1,20 @@
+<command> ::= <opcode> " " <args> "\n"
+<response> ::= <retval> "\n"
+
+Write EEPROM:
+<opcode> ::= "w"
+<args> ::= <addr> <bytes>{:pagesize}
+<retval> ::= ""
+
+Read EEPROM:
+<opcode> ::= "r"
+<args> ::= <addr> <size>
+<retval> ::= <bytes>{size}
+
+<addr> ::= "0"--"2047"
+<bytes> ::= <byte> <bytetail> | ""
+<bytetail> ::= " " <byte> <bytetail> | ""
+<byte> ::= "0"--"FF"
+<size> ::= "0"--"2048"
+
+pagesize := 16
-- 
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