Add trigger functionality

.gitea/workflows/build-win.yml

@@ -0,0 +1,34 @@
+name: Build eismuliplexer for windows
+run-name: Building eismuliplexer for windows
+on: [push]
+
+jobs:
+  Build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check out repository code
+        uses: ischanx/checkout@8c80eac3058d03dc5301629e8f7d59ae255d6cc3
+      - name: Install dependancies
+        run: |
+            apt update
+            apt install -y cmake mingw-w64-x86-64-dev gcc-mingw-w64 g++-mingw-w64 p7zip-full
+            cd ${{ gitea.workspace }}
+            wget https://github.com/libusb/libusb/releases/download/v1.0.29/libusb-1.0.29.7z
+            mkdir libusb
+            7z x libusb-1.0.29.7z -olibusb
+      - name: Version
+        id: version
+        run: git fetch -a; echo "tag=$(git describe --tags `git rev-list --tags --max-count=1`)" >> $GITHUB_OUTPUT
+      - name: Build
+        run: |
+            mkdir ${{ gitea.workspace }}/build
+            cd ${{ gitea.workspace }}/build
+            cmake -DCMAKE_INSTALL_PREFIX=/usr/x86_64-w64-mingw32/ -DCMAKE_TOOLCHAIN_FILE=../crossW64.cmake -DCMAKE_BUILD_TYPE=Release -DLIBUSB_INCLUDE_DIRS=${{ gitea.workspace }}/libusb/include/ -DLIBUSB_LIBRARIES=${{ gitea.workspace }}/libusb/MinGW64/static/libusb-1.0.a -DGIT_TAG=${{ steps.version.outputs.tag }} ..
+            make
+      - name: Package
+        run: cd ${{ gitea.workspace }}/build; make package
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v3
+        with:
+            name: eismultiplexer-win-x86_64-${{ steps.version.outputs.tag }}
+            path: ${{ gitea.workspace }}/build/packaged/${{ steps.version.outputs.tag }}/*

.gitea/workflows/build.yml

@@ -0,0 +1,24 @@
+name: Build eismuliplexer for linux
+run-name: Building eismuliplexer for linux
+on: [push]
+
+jobs:
+  Build:
+    runs-on: ubuntu-20.04
+    steps:
+      - name: Install dependancies
+        run: apt update; apt install -y libusb-1.0-0-dev cmake
+      - name: Check out repository code
+        uses: ischanx/checkout@8c80eac3058d03dc5301629e8f7d59ae255d6cc3
+      - name: Version
+        id: version
+        run: git fetch -a; echo "tag=$(git describe --tags `git rev-list --tags --max-count=1`)" >> $GITHUB_OUTPUT
+      - name: Build
+        run: mkdir ${{ gitea.workspace }}/build; cd ${{ gitea.workspace }}/build; cmake -DCMAKE_BUILD_TYPE=Release -DGIT_TAG=${{ steps.version.outputs.tag }} ..; make
+      - name: Package
+        run: cd ${{ gitea.workspace }}/build; make package
+      - name: Upload artifacts
+        uses: actions/upload-artifact@v3
+        with:
+            name: eismultiplexer-linux-x86_64-${{ steps.version.outputs.tag }}
+            path: ${{ gitea.workspace }}/build/packaged/${{ steps.version.outputs.tag }}/*

CMakeLists.txt

@@ -1,14 +1,28 @@
-cmake_minimum_required(VERSION 3.20)
+cmake_minimum_required(VERSION 3.16)
 
 project(eismultiplexer C)
 
-find_package(PkgConfig REQUIRED)
 find_package(Doxygen)
-pkg_check_modules(LIBUSB REQUIRED libusb-1.0)
+
+if(NOT LIBUSB_INCLUDE_DIRS OR NOT LIBUSB_LIBRARIES)
+	find_package(PkgConfig REQUIRED)
+	pkg_check_modules(LIBUSB libusb-1.0)
+endif()
+
+list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/")
+include(GitVersion)
+get_version_from_git()
+message("Building version ${PROJECT_VERSION}")
 
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_C_STANDARD 11)
 
+add_compile_definitions(VERSION_MAJOR=${CMAKE_PROJECT_VERSION_MAJOR})
+add_compile_definitions(VERSION_MINOR=${CMAKE_PROJECT_VERSION_MINOR})
+add_compile_definitions(VERSION_PATCH=${CMAKE_PROJECT_VERSION_PATCH})
+
+option(UDEV_RULES "install udev files" ON)
+
 set(SRC_FILES eismultiplexer.c usbshm.c)
 
 message("Platform " ${CMAKE_SYSTEM_NAME})
@@ -17,25 +31,51 @@ if(WIN32)
 	file(GLOB_RECURSE ARGP_SRC ${PROJECT_SOURCE_DIR}/argp/*.*)
 	set(SRC_FILES ${SRC_FILES} ${ARGP_SRC})
 	include_directories(./argp)
+	if(NOT (CMAKE_HOST_SYSTEM_NAME MATCHES "Windows"))
+		configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/release-win.sh ${CMAKE_CURRENT_BINARY_DIR}/release.sh @ONLY)
+		add_custom_target(package
+			COMMAND ${CMAKE_CURRENT_BINARY_DIR}/release.sh
+			WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+			COMMENT "Createing release archive"
+			VERBATIM)
+	endif()
 else()
 	message("Building for UNIX")
 	if(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
 		set(CMAKE_INSTALL_PREFIX "/usr" CACHE PATH "..." FORCE)
 	endif(CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
+	configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/release-lin.sh ${CMAKE_CURRENT_BINARY_DIR}/release.sh @ONLY)
+	add_custom_target(package
+		COMMAND ${CMAKE_CURRENT_BINARY_DIR}/release.sh
+		WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
+		COMMENT "Createing release archive"
+		VERBATIM)
 endif(WIN32)
 
 add_library(${PROJECT_NAME} SHARED ${SRC_FILES})
-target_link_libraries(${PROJECT_NAME} ${LIBUSB_LIBRARIES})
 target_include_directories(${PROJECT_NAME} PUBLIC ${LIBUSB_INCLUDE_DIRS})
-add_definitions("-std=c17 -Wall -O2 -fno-strict-aliasing")
+target_link_libraries(${PROJECT_NAME} ${LIBUSB_LIBRARIES})
+if(WIN32)
+	target_link_libraries(${PROJECT_NAME} libpthread.a)
+endif(WIN32)
+target_compile_options(${PROJECT_NAME} PRIVATE -Wall -O2 -fno-strict-aliasing)
 install(TARGETS ${PROJECT_NAME} DESTINATION lib)
 install(FILES ./eismultiplexer.h DESTINATION include)
 
+add_library(${PROJECT_NAME}_static STATIC ${SRC_FILES})
+target_include_directories(${PROJECT_NAME}_static PUBLIC ${LIBUSB_INCLUDE_DIRS})
+target_link_libraries(${PROJECT_NAME}_static ${LIBUSB_LIBRARIES})
+if(WIN32)
+	target_link_libraries(${PROJECT_NAME}_static libpthread.a)
+endif(WIN32)
+target_compile_options(${PROJECT_NAME}_static PRIVATE -Wall -O2 -fno-strict-aliasing -fPIC)
+install(TARGETS ${PROJECT_NAME}_static DESTINATION lib)
+
 link_directories(${CMAKE_CURRENT_BINARY_DIR})
 add_executable(${PROJECT_NAME}_cli main.c)
-add_dependencies(${PROJECT_NAME}_cli ${PROJECT_NAME})
+add_dependencies(${PROJECT_NAME}_cli ${PROJECT_NAME}_static)
-target_link_libraries( ${PROJECT_NAME}_cli ${PROJECT_NAME})
+target_link_libraries( ${PROJECT_NAME}_cli ${PROJECT_NAME}_static)
-add_definitions("-std=c17 -Wall -O2 -fno-strict-aliasing")
+target_compile_options(${PROJECT_NAME} PRIVATE -Wall -O2 -fno-strict-aliasing)
 install(TARGETS ${PROJECT_NAME}_cli DESTINATION bin)
 
 configure_file(pkgconfig/eismuliplexer.pc.in pkgconfig/eismuliplexer.pc @ONLY)
@@ -56,7 +96,7 @@ else (DOXYGEN_FOUND)
   message("Doxygen needs to be installed to generate the doxygen documentation")
 endif (DOXYGEN_FOUND)
 
-if(CMAKE_SYSTEM_NAME MATCHES "^Linux")
+if(CMAKE_SYSTEM_NAME MATCHES "^Linux" AND UDEV_RULES)
 	set(UDEV_RULES_INSTALL_DIR /lib/udev/rules.d CACHE PATH "install directory for linux udev config")
 	install(FILES 90-eismultiplexer.rules DESTINATION ${UDEV_RULES_INSTALL_DIR})
 endif()

README.md

@@ -37,4 +37,4 @@ to make the documentation:
 
 ### License
 
-librelaxisloader is licensed to you under the BSD-3-CLAUSE license
+librelaxisloader is licensed to you under the lgpl-3.0 or later license

cmake/GitVersion.cmake

@@ -0,0 +1,38 @@
+function(get_version_from_git)
+	find_package(Git REQUIRED)
+
+	if(NOT GIT_TAG)
+		execute_process(
+			COMMAND ${GIT_EXECUTABLE} describe --tags --always
+			WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
+			OUTPUT_VARIABLE GIT_TAG
+			OUTPUT_STRIP_TRAILING_WHITESPACE
+			RESULT_VARIABLE GIT_RESULT
+		)
+		if(NOT GIT_RESULT EQUAL 0)
+			message(FATAL_ERROR "Failed to get git tag")
+		endif()
+	endif()
+
+	string(REGEX REPLACE "^v" "" CLEAN_TAG "${GIT_TAG}")
+	if(CLEAN_TAG MATCHES "^([0-9]+)\\.([0-9]+)\\.([0-9]+)(-.*)?$")
+
+		set(CMAKE_PROJECT_VERSION_MAJOR ${CMAKE_MATCH_1})
+		set(CMAKE_PROJECT_VERSION_MAJOR ${CMAKE_MATCH_1} PARENT_SCOPE)
+		set(CMAKE_PROJECT_VERSION_MINOR ${CMAKE_MATCH_2})
+		set(CMAKE_PROJECT_VERSION_MINOR ${CMAKE_MATCH_2} PARENT_SCOPE)
+		set(CMAKE_PROJECT_VERSION_PATCH ${CMAKE_MATCH_3})
+		set(CMAKE_PROJECT_VERSION_PATCH ${CMAKE_MATCH_3} PARENT_SCOPE)
+
+		set(PROJECT_VERSION "${CMAKE_MATCH_1}.${CMAKE_MATCH_2}.${CMAKE_MATCH_3}")
+		set(PROJECT_VERSION "${CMAKE_MATCH_1}.${CMAKE_MATCH_2}.${CMAKE_MATCH_3}" PARENT_SCOPE)
+	else()
+		message(WARNING "Tag '${CLEAN_TAG}' does not match semver format")
+		set(CMAKE_PROJECT_VERSION_MAJOR 0)
+		set(CMAKE_PROJECT_VERSION_MAJOR 0 PARENT_SCOPE)
+		set(CMAKE_PROJECT_VERSION_MINOR 0)
+		set(CMAKE_PROJECT_VERSION_MINOR 0 PARENT_SCOPE)
+		set(CMAKE_PROJECT_VERSION_PATCH 0)
+		set(CMAKE_PROJECT_VERSION_PATCH 0 PARENT_SCOPE)
+	endif()
+endfunction()

crossW64.cmake

@@ -1,4 +1,5 @@
 set(CMAKE_SYSTEM_NAME Windows)
+set(CMAKE_SYSTEM_PROCESSOR AMD64)
 set(CMAKE_C_COMPILER x86_64-w64-mingw32-gcc)
 set(CMAKE_CXX_COMPILER x86_64-w64-mingw32-g++)
 set(CMAKE_FIND_ROOT_PATH /usr/x86_64-w64-mingw32)

eismultiplexer.c

@@ -33,6 +33,39 @@
 #include <stdlib.h>
 #include <time.h>
 #include <stdio.h>
+#include <sys/time.h>
+
+#ifdef WIND32
+#include <synchapi.h>
+#endif
+
+typedef enum
+{
+	COMMAND_LED_OFF = 0,
+	COMMAND_LED_ON,
+	COMMAND_SET_OUTPUTS,
+	COMMAND_GET_OUTPUTS,
+	COMMAND_EEPROM_READ,
+	COMMAND_EEPROM_WRITE,
+	COMMAND_GET_GITREV,
+	COMMAND_GET_CHANNEL_COUNT,
+	COMMAND_GET_PROTO_VERSION,
+	COMMAND_SET_TRIG,
+	COMMAND_GET_TRIG,
+	COMMAND_GET_TRIG_COUNT
+} command_t;
+
+static void msleep(uint64_t milliseconds)
+{
+#ifdef WIN32
+	Sleep(milliseconds);
+#else
+	struct timespec ts;
+	ts.tv_sec = milliseconds / 1000;
+	ts.tv_nsec = (milliseconds % 1000) * 1000000;
+	nanosleep(&ts, NULL);
+#endif
+}
 
 uint16_t* eismultiplexer_list_available_devices(size_t* count)
 {
@@ -130,6 +163,80 @@ uint16_t eismultiplexer_read_eeprom(struct eismultiplexer* muliplexer, uint16_t
 	return *((uint16_t*)buffer);
 }
 
+int eismultiplexer_set_trigger_state(struct eismultiplexer* muliplexer, uint16_t index, trigger_state_t state)
+{
+	int ret;
+	ret = usbshm_write_control_transfer(muliplexer->priv, COMMAND_SET_TRIG, NULL, 0, state, index);
+	return ret;
+}
+
+int eismultiplexer_get_trigger_state(struct eismultiplexer* muliplexer, uint16_t index, trigger_state_t* state, bool* level)
+{
+	uint8_t buffer[2] = {};
+	int ret = usbshm_read_control_transfer(muliplexer->priv, COMMAND_GET_TRIG, 0, index, buffer, 2);
+	if(ret == 2) {
+		if(state)
+			*state = buffer[1];
+		if(level)
+			*level = buffer[0];
+	}
+	return ret;
+}
+
+int eismultiplexer_wait_trigger(struct eismultiplexer* muliplexer, uint16_t index, trigger_wait_t wait, uint64_t timeout)
+{
+	bool level;
+	bool prevlevel;
+	int ret = eismultiplexer_get_trigger_state(muliplexer, index, NULL, &prevlevel);
+	if(ret != 2)
+		return ret;
+
+	struct timeval start;
+	struct timeval current;
+	gettimeofday(&start, NULL);
+	gettimeofday(&current, NULL);
+	while((current.tv_sec - start.tv_sec)*1000 + (current.tv_usec - start.tv_usec)/1000 < timeout) {
+		int ret = eismultiplexer_get_trigger_state(muliplexer, index, NULL, &level);
+		if(ret != 2)
+			return ret;
+		switch(wait) {
+			case TRIGGER_WAIT_HIGH_LEVEL:
+				if(level)
+					return 0;
+			break;
+			case TRIGGER_WAIT_LOW_LEVEL:
+				if(!level)
+					return 0;
+			break;
+			case TRIGGER_WAIT_EDGE:
+				if(prevlevel != level)
+					return 0;
+			break;
+			case TRIGGER_WAIT_HIGH:
+				if(!prevlevel && level)
+					return 0;
+			break;
+			case TRIGGER_WAIT_LOW:
+				if(prevlevel && !level)
+					return 0;
+			break;
+		}
+		msleep(100);
+		gettimeofday(&current, NULL);
+	}
+	return 1;
+}
+
+int eismultiplexer_get_trigger_count(struct eismultiplexer* muliplexer)
+{
+	uint8_t buffer[1] = {};
+	int ret = usbshm_read_control_transfer(muliplexer->priv, COMMAND_GET_TRIG, 0, 0, buffer, 1);
+	if(ret >= 0)
+		return buffer[0];
+	else
+		return 0;
+}
+
 void eismultiplexer_disconnect(struct eismultiplexer* muliplexer)
 {
 	usbshm_close(muliplexer->priv);

eismultiplexer.h

@@ -54,6 +54,23 @@ typedef enum {
 	CHANNEL_NONE = 0,
 } channel_t;
 
+typedef enum
+{
+	TRIGGER_INPUT = 0,	/*** Trigger is high impedance and set as an input*/
+	TRIGGER_LOW,		/*** Trigger output is logic low*/
+	TRIGGER_HIGH,		/*** Trigger output is logic high*/
+	TRIGGER_STATE_COUNT
+} trigger_state_t;
+
+typedef enum
+{
+	TRIGGER_WAIT_LOW = 0,	/*** Waits until the trigger falls from high to low*/
+	TRIGGER_WAIT_HIGH,		/*** Waits until the trigger rises from low to high*/
+	TRIGGER_WAIT_EDGE,		/*** Waits until the trigger changes from low to high or high to low*/
+	TRIGGER_WAIT_LOW_LEVEL,	/*** Waits until the trigger is low*/
+	TRIGGER_WAIT_HIGH_LEVEL	/*** Waits until the trigger is high*/
+} trigger_wait_t;
+
 struct eismultiplexer {
 	struct usbshm* priv;
 };
@@ -113,6 +130,41 @@ channel_t eismultiplexer_get_connected(struct eismultiplexer* muliplexer);
  */
 int eismultiplexer_set_led(struct eismultiplexer* muliplexer, bool on);
 
+/**
+ * @brief Sets the state of the trigger pin
+ * @param multiplexer pointer to a eismultiplexer struct
+ * @param state state to put the trigger in
+ * @param index the index of the trigger to set
+ * @return 0 on success and < 0 on failure
+ */
+int eismultiplexer_set_trigger_state(struct eismultiplexer* muliplexer, uint16_t index, trigger_state_t state);
+
+/**
+ * @brief Gets the logic level and state of the trigger pin
+ * @param multiplexer pointer to a eismultiplexer struct
+ * @param index the index of the trigger
+ * @param state a pointer where the current state of the trigger will be stored, can be NULL
+ * @param level a pointer where the current logic level of the trigger will be stored, only relevant if state is TRIGGER_INPUT, can be NULL
+ * @return 0 on success and < 0 on failure
+ */
+int eismultiplexer_get_trigger_state(struct eismultiplexer* muliplexer, uint16_t index, trigger_state_t* state, bool* level);
+
+/**
+ * @brief Sets the state of the trigger pin
+ * @param multiplexer pointer to a eismultiplexer struct
+ * @param index the index of the trigger
+ * @param wait wait type
+ * @param timeout maximum time in milliseconds to wait
+ * @return 0 on success and < 0 on failure
+ */
+int eismultiplexer_wait_trigger(struct eismultiplexer* muliplexer, uint16_t index, trigger_wait_t wait, uint64_t timeout);
+
+/**
+ * @brief gets the nummber of trigger pins available on the device
+ * @return the nummber of trigger pins on success and < 0 on failure
+ */
+int eismultiplexer_get_trigger_count(struct eismultiplexer* muliplexer);
+
 /**
  * @brief Gets the number of channels on the device
  * @param multiplexer pointer to an eismultiplexer struct

gpl-3.0.txt

@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+                            Preamble
+
+  The GNU General Public License is a free, copyleft license for
+software and other kinds of works.
+
+  The licenses for most software and other practical works are designed
+to take away your freedom to share and change the works.  By contrast,
+the GNU General Public License is intended to guarantee your freedom to
+share and change all versions of a program--to make sure it remains free
+software for all its users.  We, the Free Software Foundation, use the
+GNU General Public License for most of our software; it applies also to
+any other work released this way by its authors.  You can apply it to
+your programs, too.
+
+  When we speak of free software, we are referring to freedom, not
+price.  Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+them if you wish), that you receive source code or can get it if you
+want it, that you can change the software or use pieces of it in new
+free programs, and that you know you can do these things.
+
+  To protect your rights, we need to prevent others from denying you
+these rights or asking you to surrender the rights.  Therefore, you have
+certain responsibilities if you distribute copies of the software, or if
+you modify it: responsibilities to respect the freedom of others.
+
+  For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must pass on to the recipients the same
+freedoms that you received.  You must make sure that they, too, receive
+or can get the source code.  And you must show them these terms so they
+know their rights.
+
+  Developers that use the GNU GPL protect your rights with two steps:
+(1) assert copyright on the software, and (2) offer you this License
+giving you legal permission to copy, distribute and/or modify it.
+
+  For the developers' and authors' protection, the GPL clearly explains
+that there is no warranty for this free software.  For both users' and
+authors' sake, the GPL requires that modified versions be marked as
+changed, so that their problems will not be attributed erroneously to
+authors of previous versions.
+
+  Some devices are designed to deny users access to install or run
+modified versions of the software inside them, although the manufacturer
+can do so.  This is fundamentally incompatible with the aim of
+protecting users' freedom to change the software.  The systematic
+pattern of such abuse occurs in the area of products for individuals to
+use, which is precisely where it is most unacceptable.  Therefore, we
+have designed this version of the GPL to prohibit the practice for those
+products.  If such problems arise substantially in other domains, we
+stand ready to extend this provision to those domains in future versions
+of the GPL, as needed to protect the freedom of users.
+
+  Finally, every program is threatened constantly by software patents.
+States should not allow patents to restrict development and use of
+software on general-purpose computers, but in those that do, we wish to
+avoid the special danger that patents applied to a free program could
+make it effectively proprietary.  To prevent this, the GPL assures that
+patents cannot be used to render the program non-free.
+
+  The precise terms and conditions for copying, distribution and
+modification follow.
+
+                       TERMS AND CONDITIONS
+
+  0. Definitions.
+
+  "This License" refers to version 3 of the GNU General Public License.
+
+  "Copyright" also means copyright-like laws that apply to other kinds of
+works, such as semiconductor masks.
+
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+"recipients" may be individuals or organizations.
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+
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+permission, would make you directly or secondarily liable for
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+                     END OF TERMS AND CONDITIONS
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+
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+<https://www.gnu.org/licenses/why-not-lgpl.html>.

lgpl-3.0.txt

@@ -0,0 +1,165 @@
+                   GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
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+
+
+  This version of the GNU Lesser General Public License incorporates
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+
+  0. Additional Definitions.
+
+  As used herein, "this License" refers to version 3 of the GNU Lesser
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+
+  You may convey a covered work under sections 3 and 4 of this License
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+       0) Convey the Minimal Corresponding Source under the terms of this
+       License, and the Corresponding Application Code in a form
+       suitable for, and under terms that permit, the user to
+       recombine or relink the Application with a modified version of
+       the Linked Version to produce a modified Combined Work, in the
+       manner specified by section 6 of the GNU GPL for conveying
+       Corresponding Source.
+
+       1) Use a suitable shared library mechanism for linking with the
+       Library.  A suitable mechanism is one that (a) uses at run time
+       a copy of the Library already present on the user's computer
+       system, and (b) will operate properly with a modified version
+       of the Library that is interface-compatible with the Linked
+       Version.
+
+   e) Provide Installation Information, but only if you would otherwise
+   be required to provide such information under section 6 of the
+   GNU GPL, and only to the extent that such information is
+   necessary to install and execute a modified version of the
+   Combined Work produced by recombining or relinking the
+   Application with a modified version of the Linked Version. (If
+   you use option 4d0, the Installation Information must accompany
+   the Minimal Corresponding Source and Corresponding Application
+   Code. If you use option 4d1, you must provide the Installation
+   Information in the manner specified by section 6 of the GNU GPL
+   for conveying Corresponding Source.)
+
+  5. Combined Libraries.
+
+  You may place library facilities that are a work based on the
+Library side by side in a single library together with other library
+facilities that are not Applications and are not covered by this
+License, and convey such a combined library under terms of your
+choice, if you do both of the following:
+
+   a) Accompany the combined library with a copy of the same work based
+   on the Library, uncombined with any other library facilities,
+   conveyed under the terms of this License.
+
+   b) Give prominent notice with the combined library that part of it
+   is a work based on the Library, and explaining where to find the
+   accompanying uncombined form of the same work.
+
+  6. Revised Versions of the GNU Lesser General Public License.
+
+  The Free Software Foundation may publish revised and/or new versions
+of the GNU Lesser General Public License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns.
+
+  Each version is given a distinguishing version number. If the
+Library as you received it specifies that a certain numbered version
+of the GNU Lesser General Public License "or any later version"
+applies to it, you have the option of following the terms and
+conditions either of that published version or of any later version
+published by the Free Software Foundation. If the Library as you
+received it does not specify a version number of the GNU Lesser
+General Public License, you may choose any version of the GNU Lesser
+General Public License ever published by the Free Software Foundation.
+
+  If the Library as you received it specifies that a proxy can decide
+whether future versions of the GNU Lesser General Public License shall
+apply, that proxy's public statement of acceptance of any version is
+permanent authorization for you to choose that version for the
+Library.

main.c

@@ -80,8 +80,9 @@ void print_commands(void)
 	puts("get\t\t\t | get the state of all channels");
 	puts("read [ADDRESS] [LENGTH]\t | read from the device eeprom at address");
 	puts("write [ADDRESS] [LENGTH] | write to the device eeprom at address");
-	puts("list | list the serial nummbers of the connected devices");
+	puts("trigger [INDEX] [STATE]\t | set the trigger state input (0), output and low (1) or output and high(2)");
-	puts("channels | get the channel of the device");
+	puts("list\t\t\t | list the serial nummbers of the connected devices");
+	puts("channels\t\t | get the number of channels the device has");
 }
 
 static int process_commands(char** commands, size_t command_count, struct eismultiplexer* multiplexer, char* name)
@@ -160,6 +161,14 @@ static int process_commands(char** commands, size_t command_count, struct eismul
 			bool connected = channels & (1 << i);
 			printf("Channel %c: %s\n", (char)('A'+i), connected ? "on" : "off");
 		}
+		int trigger_count = eismultiplexer_get_trigger_count(multiplexer);
+		for(int i = 0; i < trigger_count; ++i)
+		{
+			trigger_state_t state;
+			bool level;
+			eismultiplexer_get_trigger_state(multiplexer, i, &state, &level);
+			printf("Trigger %i: state: %i level: %i\n", i, state, level);
+		}
 	}
 	else if(strcmp(commands[0], "channels") == 0)
 	{
@@ -187,6 +196,33 @@ static int process_commands(char** commands, size_t command_count, struct eismul
 
 		free(serials);
 	}
+	else if(strcmp(commands[0], "trigger") == 0)
+	{
+		if(command_count < 2)
+		{
+			printf("Usage %s %s [INDEX] [STATE]\n", name, commands[0]);
+			return 2;
+		}
+		int trigger_count = eismultiplexer_get_trigger_count(multiplexer);
+		long index = strtol(commands[1], NULL, 10);
+		long state = strtol(commands[2], NULL, 10);
+		if(state >= TRIGGER_STATE_COUNT)
+		{
+			printf("%li is an invalid state\n", state);
+			return 2;
+		}
+		if(index >= trigger_count)
+		{
+			printf("%li is out of range as the device has only %i triggers\n", index, trigger_count);
+			return 2;
+		}
+		int ret = eismultiplexer_set_trigger_state(multiplexer, index, state);
+		if(ret < 0)
+		{
+			puts("Unable to set trigger state");
+			return 3;
+		}
+	}
 	else
 	{
 		if(command_count != 2)
@@ -277,17 +313,33 @@ int main(int argc, char* argv[])
 		return 2;
 	}
 
+	if(config.verbose)
+	{
+		size_t count = 0;
+		printf("Connected devices:\n");
+		uint16_t* serials = eismultiplexer_list_available_devices(&count);
+		for(size_t i = 0; i < count; ++i)
+			printf("%zu: Serial %i\n", i, serials[i]);
+		free(serials);
+	}
+
 	struct eismultiplexer multiplexer;
-	if(eismultiplexer_connect(&multiplexer, config.serialSet ? config.serial : 0))
+	int ret = eismultiplexer_connect(&multiplexer, config.serialSet ? config.serial : 0);
+	if(ret)
 	{
 		char serialStr[5];
 		snprintf(serialStr, sizeof(serialStr), "%04hu", config.serial);
 		printf("Can not connect to EISmultiplexer device%s%s\n",
 			   config.serialSet ? " with serial " : "", config.serialSet ? serialStr : "");
+		if(config.verbose)
+			printf("eismultiplexer_connect ret %i\n", ret);
 		return 1;
 	}
 
-	int ret = 0;
+	if(config.verbose)
+		printf("eismultiplexer_connect ret %i\n", ret);
+
+	ret = 0;
 
 	if(config.interactive || config.pipe)
 	{

options.h

@@ -44,6 +44,7 @@ static struct argp_option options[] =
   {"pipe",			'p', 0,				0,	"run in pipe mode" },
   {"serial",		's', "[NUMBER]",	0,	"serial number of device to connect to"},
   {"list",			'l', 0,				0,	"list commands"},
+  {"verbose",		'v', 0,				0,	"enable verbose debug prints"},
   {0}
 };
 
@@ -61,6 +62,7 @@ struct config
 	char* commands[MAX_COMMANDS];
 	size_t command_count;
 	bool list_commands;
+	bool verbose;
 };
 
 static error_t parse_opt (int key, char *arg, struct argp_state *state)
@@ -89,6 +91,9 @@ static error_t parse_opt (int key, char *arg, struct argp_state *state)
 	case 'l':
 		config->list_commands = true;
 		break;
+	case 'v':
+		config->verbose = true;
+		break;
 	case ARGP_KEY_ARG:
 	{
 		if(config->command_count+1 > MAX_COMMANDS)

pkgconfig/eismuliplexer.pc.in

@@ -1,4 +1,5 @@
 includedir=@CMAKE_INSTALL_PREFIX@/include
+libdir=@CMAKE_INSTALL_PREFIX@/lib
 
 Name: libeismuliplexer
 Description: C lib to control EISmultiplexer devices

scripts/release-lin.sh

@@ -0,0 +1,45 @@
+#!/bin/bash -e
+#
+# libkissinference - an inference libary for kiss networks
+# Copyright (C) 2024 Carl Philipp Klemm <carl@uvos.xyz>
+#
+# This file is part of libkissinference.
+#
+# libkissinference is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# libkissinference is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with libkissinference.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+PROJECTNAME=@PROJECT_NAME@
+SYSTEMPROC=@CMAKE_SYSTEM_PROCESSOR@
+ROOTPATH=@CMAKE_FIND_ROOT_PATH@
+VERSION="@CMAKE_PROJECT_VERSION_MAJOR@.@CMAKE_PROJECT_VERSION_MINOR@.@CMAKE_PROJECT_VERSION_PATCH@"
+BINARYDIR="@CMAKE_CURRENT_BINARY_DIR@"
+SRCDIR="@CMAKE_CURRENT_SOURCE_DIR@"
+RELDIRECTORY="$BINARYDIR/packaged/$VERSION/release"
+ZIPNAME=$PROJECTNAME-linux-$SYSTEMPROC-$VERSION
+LIBUSB_PATH=$(readlink -f $(ldconfig -p | grep libusb-1.0.so.0 | tr ' ' '\n' | grep / | grep -v 32))
+
+rm $BINARYDIR/packaged/$ZIPNAME.zip || true
+cd $BINARYDIR
+install -d $RELDIRECTORY
+cp libeismultiplexer.so $RELDIRECTORY
+cp libeismultiplexer_static.a $RELDIRECTORY
+cp $LIBUSB_PATH $RELDIRECTORY/libusb-1.0.so.0
+cp eismultiplexer_cli $RELDIRECTORY
+mkdir $RELDIRECTORY/include || true
+cp $SRCDIR/eismultiplexer.h $RELDIRECTORY/include
+cp $SRCDIR/gpl-3.0.txt $SRCDIR/lgpl-3.0.txt $RELDIRECTORY
+cp $SRCDIR/README.md $RELDIRECTORY
+cd $RELDIRECTORY/..
+rm $BINARYDIR/packaged/$ZIPNAME.zip || true
+zip -r $BINARYDIR/packaged/$ZIPNAME.zip release

scripts/release-win.sh

@@ -0,0 +1,48 @@
+#!/bin/bash -e
+#
+# libkissinference - an inference libary for kiss networks
+# Copyright (C) 2024 Carl Philipp Klemm <carl@uvos.xyz>
+#
+# This file is part of libkissinference.
+#
+# libkissinference is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Lesser General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# libkissinference is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with libkissinference.  If not, see <http://www.gnu.org/licenses/>.
+#
+
+PROJECTNAME=@PROJECT_NAME@
+SYSTEMPROC=@CMAKE_SYSTEM_PROCESSOR@
+ROOTPATH=@CMAKE_FIND_ROOT_PATH@
+VERSION="@CMAKE_PROJECT_VERSION_MAJOR@.@CMAKE_PROJECT_VERSION_MINOR@.@CMAKE_PROJECT_VERSION_PATCH@"
+BINARYDIR="@CMAKE_CURRENT_BINARY_DIR@"
+SRCDIR="@CMAKE_CURRENT_SOURCE_DIR@"
+RELDIRECTORY="$BINARYDIR/packaged/$VERSION/release"
+ZIPNAME=$PROJECTNAME-win-$SYSTEMPROC-$VERSION
+
+rm $BINARYDIR/packaged/$ZIPNAME.zip || true
+cd $BINARYDIR
+install -d $RELDIRECTORY
+cp libeismultiplexer.dll $RELDIRECTORY
+cp libeismultiplexer_static.a $RELDIRECTORY
+cp libeismultiplexer.dll.a $RELDIRECTORY
+#cp $ROOTPATH/bin/libwinpthread-1.dll $RELDIRECTORY
+#cp $ROOTPATH/bin/libusb-1.0.dll $RELDIRECTORY
+#cp $ROOTPATH/bin/libssp-0.dll $RELDIRECTORY
+cp eismultiplexer_cli.exe $RELDIRECTORY
+cp -r $SRCDIR/EisMultiplexerWinDriver $RELDIRECTORY/driver
+mkdir $RELDIRECTORY/include || true
+cp $SRCDIR/eismultiplexer.h $RELDIRECTORY/include
+cp $SRCDIR/gpl-3.0.txt $SRCDIR/lgpl-3.0.txt $RELDIRECTORY
+cp $SRCDIR/README.md $RELDIRECTORY
+cd $RELDIRECTORY/..
+rm $BINARYDIR/packaged/$ZIPNAME.zip || true
+zip -r $BINARYDIR/packaged/$ZIPNAME.zip release

usbshm.c

@@ -38,7 +38,7 @@
 #include <stdbool.h>
 #include <string.h>
 #include <stdlib.h>
-#include <libusb-1.0/libusb.h>
+#include <libusb.h>
 #include <unistd.h>
 
 static int object_counter = 0;
@@ -125,6 +125,7 @@ int usbshm_find(struct usbshm* instance, int vendorID, int productID, unsigned c
 					(*serials)[*count] = calloc(16, 1);
 					libusb_get_string_descriptor_ascii(handle, desc.iSerialNumber, (*serials)[*count], 16);
 					++(*count);
+					libusb_close(handle);
 				}
 				else
 				{
@@ -140,6 +141,8 @@ int usbshm_find(struct usbshm* instance, int vendorID, int productID, unsigned c
 		return USBSHM_ERROR_ERR;
 	}
 
+	 libusb_free_device_list(list, true);
+
 	pthread_mutex_unlock(instance->mutex);
 
 	return 0;

usbshm.h

@@ -25,7 +25,7 @@
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#include <libusb-1.0/libusb.h>
+#include <libusb.h>
 #include <pthread.h>
 #include <stdint.h>
 #include <stdbool.h>