ins_get_app_version.md

Get App Version

Description

Gets the version of the app running on Ledger. Could be called at any time.

Command

Field	Value
INS	0x00
P1	unused
P2	unused
Lc	0

Response

Field	Length
major	1
minor	1
patch	1
flags	1

Tuple [major, minor, patch] represents app version.

Flag meanings could be found in src/getVersion.c

Mask	Value	Meaning
0x01	0x01	Devel version of the app

Ledger responsibilities

• Check:
  • Check P1 == 0
  • Check P2 == 0
  • Check Lc == 0
• Respond with app version