From 47ec0d5e2cdba9b49496add1c4880763b4d79736 Mon Sep 17 00:00:00 2001
From: Axel CHEMIN <axel.chemin@polytech-lille.net>
Date: Wed, 9 Dec 2020 14:02:08 +0100
Subject: [PATCH] récupération des endpoints

---
 include/libusb_wrapper.h |  2 ++
 src/libusb_wrapper.c     | 19 +++++++++++++++++++
 src/main.c               | 21 +++++++++++++++++++++
 3 files changed, 42 insertions(+), 0 deletions(-)

diff --git a/include/libusb_wrapper.h b/include/libusb_wrapper.h
index becb898..6143169 100644
--- a/include/libusb_wrapper.h
+++ b/include/libusb_wrapper.h
@@ -29,5 +29,7 @@ void getOurInterfaces(libusb_device *device,
 
 void displayDeviceEndpoints ();
 
+char getOnlyEndpoint(struct libusb_interface * interface);
+
 #endif
 
diff --git a/src/libusb_wrapper.c b/src/libusb_wrapper.c
index e6a6ac2..14f1616 100644
--- a/src/libusb_wrapper.c
+++ b/src/libusb_wrapper.c
@@ -17,6 +17,10 @@ void usbclose(libusb_context *context) {
 
 void interfaceclaim(libusb_device_handle *handle, struct libusb_interface *interface){
     const struct libusb_interface_descriptor * interface_desc = &interface->altsetting[0]; //TODO enlever cette ligne, refactor
+
+    if(interface_desc->bInterfaceClass == LIBUSB_CLASS_VENDOR_SPEC)//ON PEUT VERIFIER LA CLASS
+        printf("> NOT vendor specific class\n");
+
     int status=libusb_claim_interface(handle, interface_desc->bInterfaceNumber);
     if(status!=0){ perror("libusb_claim_interface"); exit(-1); }
 }
@@ -270,4 +274,19 @@ void getOurInterfaces(libusb_device *device,
         //variables globales
     }
 
+}
+
+char getOnlyEndpoint(struct libusb_interface * interface){
+
+    const struct libusb_interface_descriptor * interface_desc = &interface->altsetting[0];
+
+    printf("--bNumEndpoints=%d\n", interface_desc->bNumEndpoints);
+    printf("--bDescriptorType=%d\n", interface_desc->bDescriptorType);
+
+    const struct libusb_endpoint_descriptor * endpoint_desc = &interface_desc->endpoint[0];
+
+    if(endpoint_desc->bmAttributes != LIBUSB_TRANSFER_TYPE_INTERRUPT)//ON PEUT VERIFIER LE TRANSFER TYPE
+        printf("> is NOT of type INTERRUPT\n");
+
+    return (char)endpoint_desc->bEndpointAddress;
 }
\ No newline at end of file
diff --git a/src/main.c b/src/main.c
index 1a7f241..5f65d91 100644
--- a/src/main.c
+++ b/src/main.c
@@ -85,7 +85,28 @@ int main(int argc, char *argv[]){
         printf("-Vibrators\n");
         interfaceclaim(device_handle, int_vibrators);
 
+        //récupération des endpoints
+        printf("\nRécupération endpoints\n");
+        printf("-Leds");
+        int endpoint_leds=getOnlyEndpoint(int_leds);   /* ID of endpoint (bit 8 is 0) */
+        printf(" is %d\n", endpoint_leds);
+        printf("-Vibrators");
+        int endpoint_vibrators=getOnlyEndpoint(int_vibrators);   /* ID of endpoint (bit 8 is 0) */
+        printf(" is %d\n", endpoint_vibrators);
+
+
         /*LE CODE UTILE*/
+/*
+        char data[MAX_DATA];    // data to send or to receive
+        int size=...;           // size to send or maximum size to receive
+        int timeout=...;        // timeout in ms
+
+        //OUT interrupt, from host to device
+        int bytes_out;
+        int status=libusb_interrupt_transfer(handle,endpoint_out,data,size,&bytes_out,timeout);
+        if(status!=0){ perror("libusb_interrupt_transfer"); exit(-1); }
+*/
+        /*FIN DU CODE UTILE*/
 
         //Close
         printf("\nUnclaim interfaces ...\n");
--
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