mirror of https://github.com/nirenjan/libx52.git
Update with HID raw output format
Tools folder now contains a program to read and dump the raw HID outputpull/3/head
parent
9006404f90
commit
e57e8ced7f
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@ -4,8 +4,8 @@ Axis
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* 1 - Y axis
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* 2 - Twist axis
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* 3 - Throttle axis
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* 4 - Clutch button rotary
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* 5 - E button rotary
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* 4 - Clutch button rotary (rotary X)
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* 5 - E button rotary (rotary Y)
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* 6 - Slider
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Buttons
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@ -67,3 +67,24 @@ on the display. Stopwatch mode is not affected by this.
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Refer to the vendor API documentation for details on how to
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configure the MFD display.
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USB Report Format
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=================
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The X52 reports 15 bytes of data everytime a joystick event occurs.
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The 15 bytes are laid out in little endian format as shown below:
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10-bits of X axis position
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10-bits of Y axis position
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10-bits of twist axis position
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2 bits of padding
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8 bits of throttle position
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8 bits of rotary X position
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8 bits of rotary Y position
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8 bits of slider position
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39 bits of button information
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1 bit of padding
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4 bits of hat position
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4 bits of padding
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4 bits of thumbstick X position
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4 bits of thumbstick Y position
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@ -0,0 +1,178 @@
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/*
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* Hidraw Userspace Example
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*
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* Copyright (c) 2010 Alan Ott <alan@signal11.us>
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* Copyright (c) 2010 Signal 11 Software
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*
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* The code may be used by anyone for any purpose,
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* and can serve as a starting point for developing
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* applications using hidraw.
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*/
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/* Linux */
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#include <linux/types.h>
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#include <linux/input.h>
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#include <linux/hidraw.h>
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/*
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* Ugly hack to work around failing compilation on systems that don't
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* yet populate new version of hidraw.h to userspace.
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*
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* If you need this, please have your distro update the kernel headers.
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*/
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#ifndef HIDIOCSFEATURE
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#define HIDIOCSFEATURE(len) _IOC(_IOC_WRITE|_IOC_READ, 'H', 0x06, len)
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#define HIDIOCGFEATURE(len) _IOC(_IOC_WRITE|_IOC_READ, 'H', 0x07, len)
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#endif
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/* Unix */
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#include <sys/ioctl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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/* C */
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <errno.h>
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const char *bus_str(int bus);
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int main(int argc, char **argv)
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{
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int fd;
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int i, res, desc_size = 0;
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char buf[256];
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struct hidraw_report_descriptor rpt_desc;
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struct hidraw_devinfo info;
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/* Open the Device with non-blocking reads. In real life,
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don't use a hard coded path; use libudev instead. */
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fd = open("/dev/hidraw0", O_RDWR|O_NONBLOCK);
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if (fd < 0) {
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perror("Unable to open device");
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return 1;
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}
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memset(&rpt_desc, 0x0, sizeof(rpt_desc));
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memset(&info, 0x0, sizeof(info));
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memset(buf, 0x0, sizeof(buf));
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/* Get Report Descriptor Size */
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res = ioctl(fd, HIDIOCGRDESCSIZE, &desc_size);
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if (res < 0)
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perror("HIDIOCGRDESCSIZE");
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else
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printf("Report Descriptor Size: %d\n", desc_size);
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/* Get Report Descriptor */
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rpt_desc.size = desc_size;
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res = ioctl(fd, HIDIOCGRDESC, &rpt_desc);
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if (res < 0) {
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perror("HIDIOCGRDESC");
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} else {
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printf("Report Descriptor:\n");
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for (i = 0; i < rpt_desc.size; i++)
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printf("%hhx ", rpt_desc.value[i]);
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puts("\n");
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}
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/* Get Raw Name */
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res = ioctl(fd, HIDIOCGRAWNAME(256), buf);
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if (res < 0)
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perror("HIDIOCGRAWNAME");
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else
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printf("Raw Name: %s\n", buf);
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/* Get Physical Location */
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res = ioctl(fd, HIDIOCGRAWPHYS(256), buf);
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if (res < 0)
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perror("HIDIOCGRAWPHYS");
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else
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printf("Raw Phys: %s\n", buf);
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/* Get Raw Info */
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res = ioctl(fd, HIDIOCGRAWINFO, &info);
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if (res < 0) {
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perror("HIDIOCGRAWINFO");
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} else {
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printf("Raw Info:\n");
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printf("\tbustype: %d (%s)\n",
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info.bustype, bus_str(info.bustype));
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printf("\tvendor: 0x%04hx\n", info.vendor);
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printf("\tproduct: 0x%04hx\n", info.product);
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}
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/* Set Feature */
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buf[0] = 0x9; /* Report Number */
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buf[1] = 0xff;
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buf[2] = 0xff;
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buf[3] = 0xff;
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res = ioctl(fd, HIDIOCSFEATURE(4), buf);
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if (res < 0)
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perror("HIDIOCSFEATURE");
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else
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printf("ioctl HIDIOCGFEATURE returned: %d\n", res);
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/* Get Feature */
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buf[0] = 0x9; /* Report Number */
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res = ioctl(fd, HIDIOCGFEATURE(256), buf);
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if (res < 0) {
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perror("HIDIOCGFEATURE");
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} else {
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printf("ioctl HIDIOCGFEATURE returned: %d\n", res);
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printf("Report data (not containing the report number):\n\t");
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for (i = 0; i < res; i++)
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printf("%hhx ", buf[i]);
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puts("\n");
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}
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/* Send a Report to the Device */
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buf[0] = 0x1; /* Report Number */
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buf[1] = 0x77;
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res = 0; //write(fd, buf, 2);
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if (res < 0) {
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printf("Error: %d\n", errno);
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perror("write");
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} else {
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printf("write() wrote %d bytes\n", res);
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}
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/* Get a report from the device */
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res = read(fd, buf, 16);
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if (res < 0) {
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perror("read");
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} else {
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printf("read() read %d bytes:\n\t", res);
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for (i = 0; i < res; i++)
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printf("%hhx ", buf[i]);
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puts("\n");
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}
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close(fd);
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return 0;
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}
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const char *
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bus_str(int bus)
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{
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switch (bus) {
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case BUS_USB:
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return "USB";
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break;
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case BUS_HIL:
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return "HIL";
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break;
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case BUS_BLUETOOTH:
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return "Bluetooth";
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break;
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case BUS_VIRTUAL:
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return "Virtual";
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break;
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default:
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return "Other";
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break;
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}
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}
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@ -0,0 +1,101 @@
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/*
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* Hidraw Userspace Example
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*
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* Copyright (c) 2010 Alan Ott <alan@signal11.us>
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* Copyright (c) 2010 Signal 11 Software
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*
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* The code may be used by anyone for any purpose,
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* and can serve as a starting point for developing
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* applications using hidraw.
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*/
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/* Linux */
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#include <linux/types.h>
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#include <linux/input.h>
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#include <linux/hidraw.h>
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/*
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* Ugly hack to work around failing compilation on systems that don't
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* yet populate new version of hidraw.h to userspace.
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*
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* If you need this, please have your distro update the kernel headers.
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*/
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#ifndef HIDIOCSFEATURE
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#define HIDIOCSFEATURE(len) _IOC(_IOC_WRITE|_IOC_READ, 'H', 0x06, len)
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#define HIDIOCGFEATURE(len) _IOC(_IOC_WRITE|_IOC_READ, 'H', 0x07, len)
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#endif
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/* Unix */
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#include <sys/ioctl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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/* C */
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <errno.h>
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const char *bus_str(int bus);
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int main(int argc, char **argv)
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{
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int fd;
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int i, res, desc_size = 0;
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unsigned char buf[256];
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struct hidraw_report_descriptor rpt_desc;
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struct hidraw_devinfo info;
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/* Open the Device with non-blocking reads. In real life,
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don't use a hard coded path; use libudev instead. */
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fd = open("/dev/hidraw0", O_RDONLY);
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if (fd < 0) {
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perror("Unable to open device");
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return 1;
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}
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memset(&rpt_desc, 0x0, sizeof(rpt_desc));
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memset(&info, 0x0, sizeof(info));
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memset(buf, 0x0, sizeof(buf));
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retry:
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/* Get a report from the device */
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res = read(fd, buf, 16);
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if (res < 0) {
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perror("read");
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} else {
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printf("read() read %d bytes:\n\t", res);
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for (i = 0; i < res; i++)
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printf("%02x ", buf[i]);
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puts("\n");
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}
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goto retry;
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close(fd);
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return 0;
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}
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const char *
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bus_str(int bus)
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{
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switch (bus) {
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case BUS_USB:
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return "USB";
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break;
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case BUS_HIL:
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return "HIL";
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break;
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case BUS_BLUETOOTH:
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return "Bluetooth";
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break;
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case BUS_VIRTUAL:
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return "Virtual";
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break;
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default:
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return "Other";
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break;
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}
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}
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