fastboot/README.md: Update response packet max size to 256
This change is to update the doc to reflect the current state and it
doesn't affect the runtime behavior.
The max packet size was updated to 256 by aosp/1226715.
Bug: 196676392
Test: Presubmit; doc update doesn't affect build
Change-Id: I73b0a416730d09fdb24ea81bffe52ddd89534132
diff --git a/fastboot/README.md b/fastboot/README.md
index c224448..d3b6c1a 100644
--- a/fastboot/README.md
+++ b/fastboot/README.md
@@ -27,16 +27,16 @@
1. Host sends a command, which is an ascii string in a single
packet no greater than 64 bytes.
-2. Client response with a single packet no greater than 64 bytes.
+2. Client response with a single packet no greater than 256 bytes.
The first four bytes of the response are "OKAY", "FAIL", "DATA",
or "INFO". Additional bytes may contain an (ascii) informative
message.
- a. INFO -> the remaining 60 bytes are an informative message
+ a. INFO -> the remaining 252 bytes are an informative message
(providing progress or diagnostic messages). They should
be displayed and then step #2 repeats
- b. FAIL -> the requested command failed. The remaining 60 bytes
+ b. FAIL -> the requested command failed. The remaining 252 bytes
of the response (if present) provide a textual failure message
to present to the user. Stop.
@@ -53,13 +53,13 @@
until the client has sent or received the number of bytes indicated
in the "DATA" response above.
-4. Client responds with a single packet no greater than 64 bytes.
+4. Client responds with a single packet no greater than 256 bytes.
The first four bytes of the response are "OKAY", "FAIL", or "INFO".
Similar to #2:
- a. INFO -> display the remaining 60 bytes and return to #4
+ a. INFO -> display the remaining 252 bytes and return to #4
- b. FAIL -> display the remaining 60 bytes (if present) as a failure
+ b. FAIL -> display the remaining 252 bytes (if present) as a failure
reason and consider the command failed. Stop.
c. OKAY -> success. Go to #5