manpage: add --protocol-decoder-jsontrace command line option

[sigrok-cli.git] / doc / sigrok-cli.1

diff --git a/doc/sigrok-cli.1 b/doc/sigrok-cli.1
index 734b0ff731580502139accf3ba453628668e9308..47ec5792d282e43afe751de727a4009444d6eb1c 100644 (file)
--- a/doc/sigrok-cli.1
+++ b/doc/sigrok-cli.1
@@ -1,4 +1,4 @@
-.TH SIGROK\-CLI 1 "October 22, 2018"
+.TH SIGROK\-CLI 1 "March 28, 2019"

 .SH "NAME"
 sigrok\-cli \- Command-line client for the sigrok software
 .SH "SYNOPSIS"
 .SH "NAME"
 sigrok\-cli \- Command-line client for the sigrok software
 .SH "SYNOPSIS"


@@ -28,9 +28,17 @@ version and the versions of libraries used.
 Show information about supported hardware drivers, input file
 formats, output file formats, and protocol decoders.
 .TP
 Show information about supported hardware drivers, input file
 formats, output file formats, and protocol decoders.
 .TP

+.B "\-\-list\-supported\-wiki"
+Show information about supported protocol decoders in MediaWiki syntax.
+This is generally only used by developers to easily update the list of
+supported protocol decoders in the sigrok wiki.
+.TP

 \fB\-d, \-\-driver\fP <drivername>
 \fB\-d, \-\-driver\fP <drivername>

-A driver must always be selected (unless doing a global scan). Use the
-.BR "\-L " ( "\-\-list-supported" ")"
+Unless doing a global scan, users typically select one of the available
+drivers. This can speedup program start, and can avoid false matches for
+ambiguous configurations. Selecting a driver also allows to pass more
+driver specific options. Use the
+.BR "\-L " ( "\-\-list\-supported" ")"

 option to get a list of available drivers.
 .sp
 Drivers can take options, in the form \fBkey=value\fP
 option to get a list of available drivers.
 .sp
 Drivers can take options, in the form \fBkey=value\fP


@@ -43,8 +51,10 @@ Openbench Logic Sniffer:
 .RB "  $ " "sigrok\-cli \-\-driver=ols:conn=/dev/ttyACM0" " [...]"
 .sp
 Some USB devices don't use a unique VendorID/ProductID combination, and thus
 .RB "  $ " "sigrok\-cli \-\-driver=ols:conn=/dev/ttyACM0" " [...]"
 .sp
 Some USB devices don't use a unique VendorID/ProductID combination, and thus

-need that specified as well. This also uses the \fBconn\fP option, using
-either \fBVendorID.ProductID\fP or \fBbus.address\fP:
+need that specified as well. Notice that colons are used to separate the
+driver name from the \fBconn\fP option, thus colons cannot be used within the
+\fBconn\fP option's argument. To select a specific USB device, use either
+\fBVendorID.ProductID\fP or \fBbus.address\fP:

 .sp
 USB \fBVendorID.ProductID\fP example:
 .sp
 .sp
 USB \fBVendorID.ProductID\fP example:
 .sp


@@ -54,9 +64,25 @@ USB \fBbus.address\fP example:
 .sp
 .RB "  $ " "sigrok\-cli \-\-driver=uni\-t\-ut61e:conn=4.6" " [...]"
 .TP
 .sp
 .RB "  $ " "sigrok\-cli \-\-driver=uni\-t\-ut61e:conn=4.6" " [...]"
 .TP

+.B "\-D, \-\-dont\-scan"
+Do not automatically scan for device drivers in the absence of a
+.BR "\-d " ( "\-\-driver" )
+specification.
+.TP

 .BR "\-c, \-\-config " <deviceoption>
 A colon-separated list of device options, where each option takes the form
 .BR key=value .
 .BR "\-c, \-\-config " <deviceoption>
 A colon-separated list of device options, where each option takes the form
 .BR key=value .

+Multiple occurances of the
+.B \-\-config
+option are supported.
+The first item in the list of options can take the form
+.B channel_group=<name>
+which would override the
+.B \-\-channel\-group
+specification for this list of options. Other option lists in other
+.B \-\-config
+occurances are not affected by this list's channel group name.
+.sp

 For example, to set the samplerate to 1MHz on a device supported by the
 fx2lafw driver, you might specify
 .sp
 For example, to set the samplerate to 1MHz on a device supported by the
 fx2lafw driver, you might specify
 .sp


@@ -71,6 +97,15 @@ The following are all equivalent:
 .RB "  $ " "sigrok\-cli \-d fx2lafw \-\-config samplerate=1m" " [...]"
 .sp
 .RB "  $ " "sigrok\-cli \-d fx2lafw \-\-config \(dqsamplerate=1 MHz\(dq" " [...]"
 .RB "  $ " "sigrok\-cli \-d fx2lafw \-\-config samplerate=1m" " [...]"
 .sp
 .RB "  $ " "sigrok\-cli \-d fx2lafw \-\-config \(dqsamplerate=1 MHz\(dq" " [...]"

+.sp
+These examples specify options within a channel group.
+The first two are equivalent.
+.sp
+.RB "  $ " "sigrok\-cli \-d demo \-\-channel\-group Logic \-\-config pattern=random [...]"
+.sp
+.RB "  $ " "sigrok\-cli \-d demo \-\-config channel_group=Logic:pattern=random [...]"
+.sp
+.RB "  $ " "sigrok\-cli \-d demo \-\-config samplerate=1m \-\-config channel_group=Logic:pattern=random [...]"

 .TP
 .BR "\-i, \-\-input\-file " <filename>
 Load input from a file instead of a hardware device. You can specify
 .TP
 .BR "\-i, \-\-input\-file " <filename>
 Load input from a file instead of a hardware device. You can specify


@@ -147,9 +182,11 @@ like this:
  0:11111111 11111111 11111111 11111111 [...]
  1:11111111 00000000 11111111 00000000 [...]
 .sp
  0:11111111 11111111 11111111 11111111 [...]
  1:11111111 00000000 11111111 00000000 [...]
 .sp

-Example for saving data in the VCD format with options:
+Example for saving data in the CSV format with options:
+.sp
+.RB "  $ " "sigrok\-cli " "[...] " "\-o example.csv \-O csv:dedup:header=false"

 .sp
 .sp

-.RB "  $ " "sigrok\-cli " "[...] " "\-o example.vcd \-O vcd:downsample=4"
+Notice that boolean options are \fBtrue\fP when no value gets specified.

 .TP
 .BR "\-C, \-\-channels " <channellist>
 A comma-separated list of channels to be used in the session.
 .TP
 .BR "\-C, \-\-channels " <channellist>
 A comma-separated list of channels to be used in the session.


@@ -189,9 +226,22 @@ Specify the channel group to operate on. Some devices organize channels into
 groups, the settings of which can only be changed as a group. The list of
 channel groups, if any, is displayed with the \fB\-\-show\fP command.
 .sp
 groups, the settings of which can only be changed as a group. The list of
 channel groups, if any, is displayed with the \fB\-\-show\fP command.
 .sp

-Example:
+Examples:

 .sp
 .RB "  $ " "sigrok\-cli \-g CH1" " [...]"
 .sp
 .RB "  $ " "sigrok\-cli \-g CH1" " [...]"

+.sp
+.RB "  $ " "sigrok\-cli \-d demo \-g Logic \-c pattern=graycode" " [...]"
+.sp
+Channel group specifications in
+.B \-\-get
+or
+.B \-\-config
+options take precedence over channel group names in
+.B \-\-channel\-group
+so that a single
+.B sigrok\-cli
+invocation can support the query or manipulation of multiple device options
+which reside in different channel groups.

 .TP
 .BR "\-t, \-\-triggers " <triggerlist>
 A comma-separated list of triggers to use, of the form
 .TP
 .BR "\-t, \-\-triggers " <triggerlist>
 A comma-separated list of triggers to use, of the form


@@ -242,7 +292,7 @@ Example:
  $
 .B "sigrok\-cli \-i <file.sr> "
 .br
  $
 .B "sigrok\-cli \-i <file.sr> "
 .br

-.B "              \-P uart:baudrate=115200:parity_type=odd"
+.B "              \-P uart:baudrate=115200:parity=odd"

 .sp
 The list of supported options depends entirely on the protocol decoder. Every
 protocol decoder has different options it supports.
 .sp
 The list of supported options depends entirely on the protocol decoder. Every
 protocol decoder has different options it supports.


@@ -296,14 +346,14 @@ Example:
 .sp
 .TP
 .BR "\-A, \-\-protocol\-decoder\-annotations " <annotations>
 .sp
 .TP
 .BR "\-A, \-\-protocol\-decoder\-annotations " <annotations>

-By default, only the stack's topmost protocol decoder's annotation output is
-shown. With this option another decoder's annotation can be selected for
-display, by specifying its ID:
+By default, all annotation output of all protocol decoders is
+shown. With this option a specific decoder's annotations can be selected for
+display, by specifying the decoder ID:

 .sp
  $
 .B "sigrok\-cli \-i <file.sr> \-P i2c,i2cfilter,edid \-A i2c"
 .sp
 .sp
  $
 .B "sigrok\-cli \-i <file.sr> \-P i2c,i2cfilter,edid \-A i2c"
 .sp

-If a protocol decoder has multiple annotations, you can also specify
+If a protocol decoder has multiple annotation classes, you can also specify

 which one of them to show by specifying its short description like this:
 .sp
  $
 which one of them to show by specifying its short description like this:
 .sp
  $


@@ -311,15 +361,24 @@ which one of them to show by specifying its short description like this:
 .br
 .B "              \-A i2c=data\-read"
 .sp
 .br
 .B "              \-A i2c=data\-read"
 .sp

-Select multiple annotations by separating them with a colon:
+Select multiple annotation classes by separating them with a colon:

 .sp
  $
 .B "sigrok\-cli \-i <file.sr> \-P i2c,i2cfilter,edid"
 .br
 .B "              \-A i2c=data\-read:data\-write"
 .sp
 .sp
  $
 .B "sigrok\-cli \-i <file.sr> \-P i2c,i2cfilter,edid"
 .br
 .B "              \-A i2c=data\-read:data\-write"
 .sp

-You can also select multiple protocol decoders, with an optional selected
-annotation each, by separating them with commas:
+Annotation row names will resolve to their respective list of classes.
+Row and class names can be used in combination. When names are ambiguous
+then class names take precedence.
+.sp
+ $
+.B "sigrok\-cli \-i <file.sr> \-P i2c"
+.br
+.B "              \-A i2c=addr\-data:warnings"
+.sp
+You can also select multiple protocol decoders, with optionally selected
+annotation classes each, by separating them with commas:

 .sp
  $
 .B "sigrok\-cli \-i <file.sr> \-P i2c,i2cfilter,edid"
 .sp
  $
 .B "sigrok\-cli \-i <file.sr> \-P i2c,i2cfilter,edid"


@@ -367,6 +426,13 @@ Not every decoder generates binary output.
 When given, decoder annotations will include sample numbers, too.
 This allows consumers to receive machine readable timing information.
 .TP
 When given, decoder annotations will include sample numbers, too.
 This allows consumers to receive machine readable timing information.
 .TP

+.BR "\-\-protocol\-decoder\-ann\-class
+When given, decoder annotations will include annotation class names.
+.TP
+.BR "\-\-protocol\-decoder\-jsontrace
+When given, decoder output uses the Google Trace Event format (JSON).
+Which can be inspected in web browsers or other viewers.
+.TP

 .BR "\-l, \-\-loglevel " <level>
 Set the libsigrok and libsigrokdecode loglevel. At the moment \fBsigrok\-cli\fP
 doesn't support setting the two loglevels independently. The higher the
 .BR "\-l, \-\-loglevel " <level>
 Set the libsigrok and libsigrokdecode loglevel. At the moment \fBsigrok\-cli\fP
 doesn't support setting the two loglevels independently. The higher the


@@ -406,6 +472,13 @@ This also works for protocol decoders, input modules and output modules:
 .B "sigrok\-cli \-\-input\-format csv \-\-show
  $
 .B "sigrok\-cli \-\-output\-format bits \-\-show
 .B "sigrok\-cli \-\-input\-format csv \-\-show
  $
 .B "sigrok\-cli \-\-output\-format bits \-\-show

+.sp
+This also works for input files, including optional input format specifications:
+.sp
+ $
+.B "sigrok\-cli \-\-input\-file <file.sr> \-\-show
+ $
+.B "sigrok\-cli \-\-input\-file <file.vcd> \-\-input\-format vcd \-\-show

 .TP
 .B "\-\-scan"
 Scan for devices that can be detected automatically.
 .TP
 .B "\-\-scan"
 Scan for devices that can be detected automatically.


@@ -468,6 +541,20 @@ Sample continuously until stopped. Not all devices support this.
 Get the value of
 .B <variable>
 from the specified device and print it.
 Get the value of
 .B <variable>
 from the specified device and print it.

+Multiple variable names can be specified and get separated by colon.
+The list of variable names optionally can be preceeded by
+.B "channel_group=<name>"
+which would override the
+.B \-\-channel\-group
+specification.
+Multiple
+.B \-\-get
+occurances are supported in a single
+.B sigrok\-cli
+invocation.
+.sp
+ $
+.B sigrok\-cli \-d demo \-\-get samplerate:averaging \-\-get channel_group=Logic:pattern

 .TP
 .BR "\-\-set"
 Set one or more variables specified with the \fB\-\-config\fP option, without
 .TP
 .BR "\-\-set"
 Set one or more variables specified with the \fB\-\-config\fP option, without