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Merge "fastboot: update getvar documentation."

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David Pursell 2017-01-03 17:45:04 +00:00 committed by Gerrit Code Review
commit fd979edb57
1 changed files with 12 additions and 5 deletions
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17
fastboot/fastboot_protocol.txt
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@ -78,7 +78,7 @@ Client: "OKAY0.4" return version "0.4"
Host: "getvar:nonexistant" request some undefined variable
Client: "OKAY" return value ""
Client: "FAILUnknown variable" getvar failure; see getvar details below
Host: "download:00001234" request to send 0x1234 bytes of data
@ -113,7 +113,14 @@ Command Reference
"getvar:%s" Read a config/version variable from the bootloader.
The variable contents will be returned after the
OKAY response.
OKAY response. If the variable is unknown, the bootloader
should return a FAIL response, optionally with an error
message.
Previous versions of this document indicated that getvar
should return an empty OKAY response for unknown
variables, so older devices might exhibit this behavior,
but new implementations should return FAIL instead.
"download:%08x" Write data to memory which will be later used
by "boot", "ramdisk", "flash", etc. The client
@ -215,7 +222,7 @@ Device FB01
Host [0x00][0x00][0x00][0x00][0x00][0x00][0x00][0x0E]getvar:version
Device [0x00][0x00][0x00][0x00][0x00][0x00][0x00][0x07]OKAY0.4
Host [0x00][0x00][0x00][0x00][0x00][0x00][0x00][0x0B]getvar:none
Device [0x00][0x00][0x00][0x00][0x00][0x00][0x00][0x04]OKAY
Device [0x00][0x00][0x00][0x00][0x00][0x00][0x00][0x14]FAILUnknown variable
Host <disconnect>
@ -364,10 +371,10 @@ ID Flags SeqH SeqL Data ID Flags SeqH SeqL Data
0x03 0x00 0x00 0x01
0x03 0x00 0x00 0x02
0x03 0x00 0x00 0x02 OKAY0.4
0x03 0x00 0x00 0x03 getvar:foo
0x03 0x00 0x00 0x03 getvar:none
0x03 0x00 0x00 0x03
0x03 0x00 0x00 0x04
0x03 0x00 0x00 0x04 OKAY
0x03 0x00 0x00 0x04 FAILUnknown var
----------------------------------------------------------------------
[fastboot "INFO" responses, S = 0x0000]