Use ssmarshal to generate the response data

Previously, we manually constructed the data to sent with a Get_Report
response.  This patch introduces the Response struct which can be
serialized using ssmarshal.

As Serialize is only implemented for arrays with a length up to 32, we
have to use the serde-big-array crate for the data field.  As the
command ID might not be recognized by us, we use a raw u8 value instead
of the CommandId enum.

1 files changed, 1 insertions, 0 deletions

diff --git a/Cargo.toml b/Cargo.toml
index a11296e..b5f2c65 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -14,6 +14,7 @@ cortex-m = "0.5.8"
 cortex-m-rt = "0.6.7"
 embedded-hal = "0.2.2"
 panic-halt = "0.2.0"
+serde-big-array = "0.1.4"
 stm32f103xx-usb = { git = "https://github.com/mvirkkunen/stm32f103xx-usb", rev = "57d23751367461bec5f39322727bdd65e5c2aa30" }
 usb-device = { git = "https://github.com/mvirkkunen/usb-device", rev = "e58e30f3b9c9bf4aab00ea039d129b964a3fd2d3" }