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Moved device handling block to its own function

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- 2020-09-30 02:07:24 -07:00
parent 4dcb0d8f54
commit 26f132e866
1 changed files with 70 additions and 44 deletions
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114
hanvon-libusb.c
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@ -19,6 +19,10 @@
#include <stdio.h>
#include <libusb-1.0/libusb.h>
#include "hidapi/hidapi.h"
#include <wchar.h>
#include <locale.h>
#define STATE_SUCCESS 0
#define STATE_NOT_FOUND 1
@ -65,13 +69,6 @@ struct hanvon {
char phys[32];
};
void callback(struct libusb_transfer *transfer) {
int i = 0;
for(; i < 10; i++) {
printf("0x%x, ", transfer -> buffer[i]);
}
printf("placeholder\n");
}
int find_device(libusb_device **list, unsigned int count) {
if (count < 0) {
@ -83,7 +80,7 @@ int find_device(libusb_device **list, unsigned int count) {
libusb_device *t = list[i];
libusb_get_device_descriptor(list[i], &desc);
printf( "Dev%u ID %04x:%04x\n", (i), desc.idVendor, desc.idProduct );
// printf( "Dev%u ID %04x:%04x\n", (i), desc.idVendor, desc.idProduct );
if (desc.idVendor == VENDOR_ID_HANVON) {
switch(desc.idProduct) {
@ -110,7 +107,50 @@ int find_device(libusb_device **list, unsigned int count) {
return found;
}
void callback(struct libusb_transfer *transfer) {
unsigned char *data = transfer -> buffer;
for(int i = 0; i < 10; i++) {
printf("0x%x, ", data[i]);
}
printf("placeholder\n");
}
int handle_device_lusb(libusb_device *d) {
libusb_device_handle *h;
int status = libusb_open(d, &h);
if (status < 0 || h == NULL) {
printf("Error opening device, %i.\n", status);
libusb_exit(NULL);
return 0;
}
// Wait and handle interrupts?
struct libusb_transfer *tx;
const int ENDPOINT_ADDR = 0x81; // bEndpointAddress from lsusb -v
const unsigned int LEN = 10; // wMaxPacketSize from lsusb -v
unsigned char buffer[LEN];
// Allocate memory for transfer, configure, then submit
tx = libusb_alloc_transfer(0);
libusb_fill_interrupt_transfer( tx,
h,
ENDPOINT_ADDR,
buffer,
LEN,
callback,
NULL,
130); // timeout in milliseconds
do {
status = libusb_submit_transfer(tx);
if (status < 0 ) {
return status;
}
libusb_handle_events(NULL);
} while (1);
return 0;
}
libusb_device *FindHanvon( libusb_context **context);
int HandleData( void );
@ -131,51 +171,37 @@ int main()
libusb_exit(NULL);
return count;
}
int index = find_device(devs, count);
if (index < 0) {
printf("Device not plugged in\n");
libusb_exit(NULL);
return 0;
}
libusb_device *device = devs[index];
libusb_free_device_list (devs, UNREF_DEVICE);
printf("Device #%i\n", index);
int res = hid_init();
hid_device *handle = hid_open(VENDOR_ID_HANVON, PRODUCT_ID_GP0504, NULL);
if (handle != NULL) {
// wchar_t wstr[80];
// setlocale(LC_CTYPE, "");
unsigned char buf[10];
res = hid_read(handle, buf, 10);
for (unsigned int i = 0; i < 10; i++) {
printf("0x%x, ", buf[i]);
}
} else {
printf("hidapi: Could not open device\n");
}
hid_close(handle);
res = hid_exit();
libusb_device_handle *h;
int state = libusb_open(devs[index], &h);
libusb_free_device_list (devs, UNREF_DEVICE);
if (state < 0 || h == NULL) {
printf(" Something happened, %i.\n", state);
return 0;
}
// Wait and handle interrupts?
struct libusb_transfer *tx;
int s = handle_device_lusb(device);
const int ENDPOINT_ADDR = 0x81; // bEndpointAddress from lsusb -v
const unsigned int LEN = 10; // wMaxPacketSize from lsusb -v
unsigned char buffer[LEN];
// Allocate memory for transfer, configure, then submit
tx = libusb_alloc_transfer(0);
libusb_fill_interrupt_transfer( tx,
h,
ENDPOINT_ADDR,
buffer,
LEN,
callback,
NULL,
130); // timeout in milliseconds
do {
state = libusb_submit_transfer(tx);
if (state < 0 ) {
return state;
}
libusb_handle_events(NULL);
} while (1);
return state;
libusb_exit(NULL);
return 0;
}
@ -193,7 +219,7 @@ libusb_device *FindHanvon( libusb_context **context)
{
libusb_device *device = deviceList[i];
libusb_get_device_descriptor(device, &description);
printf( "Dev%u ID %04x:%04x\n", (i + 1), description.idVendor, description.idProduct );
//printf( "Dev%u ID %04x:%04x\n", (i + 1), description.idVendor, description.idProduct );
if( description.idVendor == VENDOR_ID_HANVON )
{
switch( description.idProduct )