The Rigol DS1054Z sometimes returns zero bytes in response to a bulk in
request. sigrok ends up reading out of bounds and failing ungracefully
when this happens. Check that libusb returned a full USBTMC header and
fail gracefully if it did not.
This adds basic support for the Rigol MSO5000 series. It has
the same problems as the DS4000 series: Live capture provides
one digital channel per byte. Buffered memory returns the data
compressed (one byte has 8 digital channels), but the banks are
read separately. It's not possible to read uint16.
These trigger quite often with unrelated devices and confuse people.
scpi_usbtmc: Failed to get configuration descriptor: LIBUSB_ERROR_NOT_FOUND, ignoring device.
Make the USB reset for USB TMC devices conditional. Check a whitelist,
which in this implementation exclusively contains the Siglent VID.
The whitelist's comment may need adjustment. The VID probably not only
applies to SDS devices, but could be used for SDG and others as well.
And lsusb output suggests the VID is used by Atten, too.
Add the Siglent's VID to a list of blacklisted USB TMC devices.
Unconditionally reset USB devices in the open routine.
This was taken from marchel's development for Siglent SDS. Though the
reset should probably be conditional, and only get applied to devices
which are known to need it.
The comment may need adjustment, maybe individual PID entries are
required. The VID probably not only applies to SDS devices, but could
be used for SDG and other gear as well. And lsusb output suggests the
VID is used by Atten, too.
Drop unneeded log messages, add some others that might be useful,
document which ones we're intentionally not emitting.
Don't log "$operation successful" type of messages in most cases,
that's too verbose; logging failures only is sufficient there.
baylibre-acme: Don't log "No such file or directory" messages during scan,
this triggers on all kinds of unrelated devices (e.g. "AMDGPU i2c bit
bus 0x91" in this case):
sr: [...] baylibre-acme: Name for probe 1 can't be read: Failed to open file “/sys/class/i2c-adapter/i2c-1/1-0040/name”: No such file or directory
sr: [...] baylibre-acme: Name for probe 2 can't be read: Failed to open file “/sys/class/i2c-adapter/i2c-1/1-0041/name”: No such file or directory
sr: [...] baylibre-acme: Name for probe 3 can't be read: Failed to open file “/sys/class/i2c-adapter/i2c-1/1-0044/name”: No such file or directory
sr: [...] baylibre-acme: Name for probe 4 can't be read: Failed to open file “/sys/class/i2c-adapter/i2c-1/1-0045/name”: No such file or directory
sr: [...] baylibre-acme: Name for probe 5 can't be read: Failed to open file “/sys/class/i2c-adapter/i2c-1/1-0042/name”: No such file or directory
sr: [...] baylibre-acme: Name for probe 5 can't be read: Failed to open file “/sys/class/i2c-adapter/i2c-1/1-004c/name”: No such file or directory
sr: [...] baylibre-acme: Name for probe 6 can't be read: Failed to open file “/sys/class/i2c-adapter/i2c-1/1-0043/name”: No such file or directory
sr: [...] baylibre-acme: Name for probe 6 can't be read: Failed to open file “/sys/class/i2c-adapter/i2c-1/1-0049/name”: No such file or directory
sr: [...] baylibre-acme: Name for probe 7 can't be read: Failed to open file “/sys/class/i2c-adapter/i2c-1/1-0046/name”: No such file or directory
sr: [...] baylibre-acme: Name for probe 7 can't be read: Failed to open file “/sys/class/i2c-adapter/i2c-1/1-004f/name”: No such file or directory
sr: [...] baylibre-acme: Name for probe 8 can't be read: Failed to open file “/sys/class/i2c-adapter/i2c-1/1-0047/name”: No such file or directory
sr: [...] baylibre-acme: Name for probe 8 can't be read: Failed to open file “/sys/class/i2c-adapter/i2c-1/1-004b/name”: No such file or directory
According to USBTMC usb488 subclass spec, wValue hast to be 0 for both
LOCAL_LOCKOUT and GO_TO_LOCAL. At least required for R&S HMO1002, the
bad request results in a STALL. Fixes bug #783.
Firmware versions starting with 00.02.04 apparently cause the in and out
bulk endpoints to end up in a HALT state. This is likely related to the
larger transfer size quirk implemented in the Linux kernel for the Rigol
DS1000: this USBTMC implementation does not have that workaround.
Instead, if the firmware version is >= 00.02.04, both endpoints have the HALT
condition cleared on device close.
This fixes bug #354.
Since Autoconf places some important feature flags only into the
configuration header, it is necessary to include it globally to
guarantee a consistent build.
Move the include flags for files in the source tree from
configure.ac to Makefile.am where they belong. Also use
AM_CPPFLAGS instead of CFLAGS/CXXFLAGS to make sure the
files in the build/source tree are always picked up first.
Also, remove the include/libsigrok sub-directory from the
search path, thereby making the <libsigrok/> prefix mandatory
when building libsigrok itself. This matches the convention
already imposed on users of the library.