Uwe Hermann [Fri, 9 Feb 2018 20:25:18 +0000 (21:25 +0100)]
beaglelogic: Fix a compiler warning.
beaglelogic_tcp.c: In function 'beaglelogic_tcp_send_cmd':
beaglelogic_tcp.c:114:3: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'size_t' [-Wformat=]
sr_dbg("Only sent %d/%lu bytes of command: '%s'.", out,
^
Gerhard Sittig [Fri, 9 Feb 2018 18:23:31 +0000 (19:23 +0100)]
ols, pipistrello-ols: silence "assigned, not used" compiler warning
Each code path either assigns to 'flags', or leaves the routine. There
is no potential path that leaves the variable at the initially assigned
value, so the assignment took no effect. Remove it.
Nit: Trim the source code line length while we are here.
Gerhard Sittig [Fri, 9 Feb 2018 18:17:13 +0000 (19:17 +0100)]
motech-lps-30x: fix several compiler warnings
Check pointers' validity before dereferencing them. Explicitly assign a
default value to variables, before conversion routines conditionally
assign the "real" value (and don't in case of conversion errors). This
avoids processing "garbage" data.
Strictly speaking I cannot see how the conversion routine returns OK and
has _not_ assigned a result. But the explicit assignment won't harm
either, and matches the fallback when the conversion fails (detectibly).
Which means that runtime behaviour won't change.
Gerhard Sittig [Fri, 9 Feb 2018 18:09:27 +0000 (19:09 +0100)]
lascar-el-usb: fix potential NULL dereference and memory leak
Check for successful allocation of multiple memory ranges, and release
partial allocations in the error path when one of them failed. This
fixes a potential memory leak, as well as avoids NULL dereferences.
Gerhard Sittig [Fri, 9 Feb 2018 17:50:53 +0000 (18:50 +0100)]
gmc-mh-1x-2x: fix potential memory leak
The scan_2x_bd232() routine used to always prepare one spare context,
and filled it in when a device was found, just to allocate another one
and continue scanning.
Free the last allocated context unconditionally, as it was allocated
unconditionally, and never used.
Gerhard Sittig [Thu, 8 Feb 2018 21:18:02 +0000 (22:18 +0100)]
session_driver: avoid division by zero, catch API violation
Avoid a division by zero, by not using a zero unitsize in a modulo
operation. As a byproduct, avoid processing and counting input that
neither has analog nor logic data. This should never have happened,
but the change now catches the error if invalid input is seen.
Gerhard Sittig [Thu, 8 Feb 2018 21:11:58 +0000 (22:11 +0100)]
session: fixup access to uninitialized memory
The sr_packet_copy() routine could have written to an arbitrary memory
location. Make sure to allocate the space before writing to it, and
check for successful allocation before accessing the memory.
It's assumed that this error never took effect, as the routine appears
to be unused.
Philipp Marek [Wed, 20 Dec 2017 15:10:59 +0000 (16:10 +0100)]
hantek-dso: dso2250: Fix capture runaway, only do the requested number of frames.
After the first capture ->num_frames never got to be _equal_
to ->limit_frames; fixed by resetting to zero in dev_acquisition_stop(),
and protected against similar problems in the future by switching to
greater-or-equal instead.
[Note: This patch is basically a squashed version of the initial driver
commits by Andreas Zschunke <redacted>, two fixes by
Andrej Valek <redacted>, and various coding style / cosmetic
fixes by Uwe Hermann <redacted> to make the driver a lot more
consistent with the rest of the libsigrok code-base.]
Stefan Brüns [Mon, 11 Dec 2017 03:17:26 +0000 (04:17 +0100)]
rigol-ds: Fix crash when fetching logic channels
When refactoring the code, some places where sr_scpi_send was replaced
by rigol_ds_config_set the first argument was not changed from sdi->conn
to sdi. Fix the remaining ones.
Due to how the sysclk-lwla driver does up to 3 open/close operations in
one dev_open() API callback we cannot rely on the sr_dev_open() and
sr_dev_close() wrappers setting the sdi->status variable in this case.
Gerhard Sittig [Mon, 13 Mar 2017 12:17:05 +0000 (13:17 +0100)]
input/vcd: fixup VCD timestamp to sigrok samplenum mapping
When processing of large VCD input files was spread across multiple
parse_contents() invocations, the resulting sigrok stream of sample data
had gaps in them and total timing was off. For instance 74ms of input
data were interpreted as spanning some 600ms or 300ms, depending on the
number of channels in the input stream.
Move the "previous timestamp" variable to the input module context. This
eliminates the inappropriate gaps and fixes the translation of VCD file
timestamps to sigrok sample numbers.
Stefan Brüns [Sun, 29 Oct 2017 19:57:11 +0000 (20:57 +0100)]
cleanup udev part of README.devices, reflect split rules
Remove vague statements from the README. On all current distributions,
the udev paths are identical, anyone deliberately deviating from the
defaults should be able to handle it by themselves.
Rules in /etc/udev/rules.d/ should only be used for customization, or
for locally built packages.
Stefan Brüns [Sun, 29 Oct 2017 19:03:53 +0000 (20:03 +0100)]
contrib: Split device access policy from the device database
Split the distribution independent database from the access policy rules.
This avoids warnings due to granting permissions to the commonly unknown
plugdev group, and allows simple overrides of the used access policy.
Stefan Brüns [Sun, 29 Oct 2017 17:35:06 +0000 (18:35 +0100)]
contrib: rename udev rules for correct rule ordering on systemd systems
The "uaccess" tag has to be added before the "seat" rule is evaluated.
The upstream default for the seat rule is "71-seat.rules", so use
60-libsigrok.rules for appropriate lexicographical sorting.
Also use a dash instead of underscore, the latter is commonly used as a
replacement character of unsafe characters in autogenerated identifiers.
Frank Stettner [Thu, 2 Nov 2017 17:04:59 +0000 (18:04 +0100)]
drivers: Fix locale dependent string to float conversion
Some drivers used locale dependent functions for converting strings
to float/double values. These functions fail when the decimal mark
is a "," in the locale settings but the string contains a ".".
Soeren Apel [Wed, 11 Oct 2017 16:14:56 +0000 (18:14 +0200)]
demo: Properly handle low samplerates
A "low samplerate" in this case means anything where
samples_todo is less than SAMPLES_PER_FRAME. This case
wasn't handled properly before, resulting in wrong
amounts of data being sent out.
Soeren Apel [Mon, 9 Oct 2017 05:32:31 +0000 (07:32 +0200)]
lecroy-xstream: Fix sample rate
We can't use the memory size command because it returns
the *maximum* memory used, not the *actual* memory used.
Hence, we only know the number of samples per div once
sample data actually comes in.
Soeren Apel [Tue, 3 Oct 2017 11:29:46 +0000 (13:29 +0200)]
lecroy-xstream: Use best-effort strategy for unknown models
As there is a huge range of supported LeCroy scopes, naming
the IDN response for every single one of them is going to be
impossible. Hence, it makes more sense to treat all LeCroy
devices as if they were scopes and supported. This approach
lets users try to see how far they get and if they run into
issues, they can then be treated separately - e.g. by creating
a custom device profile.
Unless we do this, the vast majority of LeCroy scopes will
not be recognized by the driver.