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| author | Joel Porquet <porquet_joel@projectara.com> | 2016-06-25 00:41:36 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@google.com> | 2016-06-25 01:46:52 +0300 |
| commit | c0e65d026c297c53eeb5412c31a5410317225945 (patch) | |
| tree | 2611d50078d937204f5e3e55041f726b96b10324 /drivers/staging/greybus/greybus_manifest.h | |
| parent | 6f7f2ae5df786bf9ced3247fda51a0a7aeb9cd0c (diff) | |
| download | linux-c0e65d026c297c53eeb5412c31a5410317225945.tar.xz | |
greybus: add support for the log protocol
Add support for the new Log class/protocol. This protocol allows modules
to send their internal logging messages to the AP in order to make
module debugging easier.
The protocol is, for now, composed a single module-initiated request.
This request contains a message and associated length. The message is
integrated in the kernel log with dev_dbg(). In order to be displayed
with 'dmesg', the following command needs to be entered first:
$ echo "file log.c +p" > /sys/kernel/debug/dynamic_debug/control
The major portion of this file was initially written by Greg KH.
Signed-off-by: Joel Porquet <porquet_joel@projectara.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Diffstat (limited to 'drivers/staging/greybus/greybus_manifest.h')
| -rw-r--r-- | drivers/staging/greybus/greybus_manifest.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/staging/greybus/greybus_manifest.h b/drivers/staging/greybus/greybus_manifest.h index 28bbadd057d1..2ae39ad92368 100644 --- a/drivers/staging/greybus/greybus_manifest.h +++ b/drivers/staging/greybus/greybus_manifest.h @@ -47,6 +47,7 @@ enum greybus_protocol { GREYBUS_PROTOCOL_CAMERA_DATA = 0x16, GREYBUS_PROTOCOL_FW_DOWNLOAD = 0x17, GREYBUS_PROTOCOL_FW_MANAGEMENT = 0x18, + GREYBUS_PROTOCOL_LOG = 0x1a, /* ... */ GREYBUS_PROTOCOL_RAW = 0xfe, GREYBUS_PROTOCOL_VENDOR = 0xff, @@ -76,6 +77,7 @@ enum greybus_class_type { /* 0x14 is unused */ GREYBUS_CLASS_BOOTROM = 0x15, GREYBUS_CLASS_FW_MANAGEMENT = 0x16, + GREYBUS_CLASS_LOG = 0x17, /* ... */ GREYBUS_CLASS_RAW = 0xfe, GREYBUS_CLASS_VENDOR = 0xff, |