Greetings everyone!
Could someone ,please, advice me a solution to solve such problem-
i have an usb device, which is present in my FBSD 6.0 as /dev/ugen0
and /dev/ugen0.1
i need to send to this device 5 bytes and read from it 3 bytes but i'm
not good in usb protocol and i don't get a right result . here is my
test code in C.
Thank you.
#include <fcntl.h>
#include <sys/uio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <sys/param.h>
#include <errno.h>
#include <unistd.h>
#include <termios.h>
#include <sys/ioctl.h>
#include <dev/usb/usb.h>
#define RBUF 3
#define WBUF 5
char *pidfile = "/var/run/pgs.pid";
char *u = 0; /* device file */
unsigned char txb[WBUF] = {0x06, 0x00, 0x00, 0x00, 0x00};
unsigned char rxb[RBUF];
unsigned char *ufd_dat;
extern char *optarg;
int i = 0, n , c, ret;
int fd , fp;
unsigned char rbuf[RBUF], wbuf[WBUF] = {0x06, 0x00, 0x00, 0x00, 0x00};
open_devs(void)
{
if ((fd = open(u, O_RDWR)) < 0)
err(1, "cannot open %s", u);
};
close_devs(void)
{
close(fd);
};
save_pid()
{
fp = fopen(pidfile, "w");
if (fp != 0) {
fprintf(fp, "%d\n", getpid());
fclose(fp);
};
};
int
main(int argc, char *argv[])
{
while ((c = getopt(argc, argv, ":?hd:i:")) != -1) {
switch (c) {
case 'd':
u = optarg;
printf("Input device set to %s\n", optarg);
break;
case 'i':
pidfile = optarg;
printf("Using pid file %s\n", optarg);
break;
case ':':
case '?':
case 'h':
default:
break;
}
}
if (argc < 1) {
printf("Wrong number of options!\n\n");
};
save_pid();
open_devs();
////////////////////////GET_DEVICEINFO //////////////////////////
struct usb_device_info di;
ret = ioctl(fd, USB_GET_DEVICEINFO, &di);
printf("ret=%d\n", ret);
printf("product %s\n", di.udi_product);
printf("vendor %s\n", di.udi_vendor);
printf("release %s\n", di.udi_release);
printf("devnames %s\n", di.udi_devnames);
printf("ports %02X\n", di.udi_ports);
printf("address %02X\n", di.udi_addr);
////////////////////////////////////////////////////////////////
//////////////////////USB_GET_DEVICE_DESC //////////////////////
usb_device_descriptor_t udd;
if (ioctl(fd, USB_GET_DEVICE_DESC, &udd) == -1) {
err(2, "%s", u);
}
printf("idVendor=%02X\n", UGETW(udd.idVendor));
printf("idProduct=%02X\n", UGETW(udd.idProduct));
////////////////////////////////////////////////////////////////
//////////////////////WRITE WBUF
////////////////////////////////
struct usb_ctl_request dr;
dr.ucr_addr = di.udi_addr;
dr.ucr_data = txb;
dr.ucr_request.bmRequestType = UT_WRITE_VENDOR_ENDPOINT;
dr.ucr_request.bRequest = 0;
USETW(dr.ucr_request.wValue, 0);
USETW(dr.ucr_request.wIndex, 0);
USETW(dr.ucr_request.wLength, WBUF);
if (ioctl(fd, USB_DO_REQUEST, &dr) == 0)
printf("write successfull!\n");
else
printf("Write FAILED!\n");
printf("%2X %2X %2X %2X %2X\n", txb[0], txb[1], txb[2], txb[3], txb[4]);
///////////////////////////////////////////////////////////////
/////////////////////READ RBUF /////////////////////////////////
struct usb_ctl_request rdr;
rdr.ucr_addr = di.udi_addr;
rdr.ucr_data = rxb;
rdr.ucr_request.bmRequestType = UT_READ_VENDOR_ENDPOINT;
rdr.ucr_request.bRequest = 0;
USETW(rdr.ucr_request.wValue, 0);
USETW(rdr.ucr_request.wIndex, 0);
USETW(rdr.ucr_request.wLength, 0);
if (ioctl(fd, USB_DO_REQUEST, &rdr) != 0)
printf("READ FAILED!\n");
else
printf("READ: %2X %2X %2X\n", rxb[0], rxb[1], rxb[2]);
///////////////////////////////////////////////////////////////
close_devs();
exit(0);
}
./Ugen_test -d /dev/ugen0
Input device set to /dev/ugen0
ret=0
product SOBAKA 2.2 ( WDT + DS + Amp )
vendor PGS
release 0.02
devnames ugen0
ports BFBFEA84
address 02
idVendor=777
idProduct=FF77
write successfull!
6 0 0 0 0
READ: 0 0 0
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