am7xxx: reference am7xxx_usb_device_descriptor in struct _am7xxx_device

This makes it possible to retrieve info from the am7xxx device
descriptor starting from an am7xxx_device.

diff --git a/src/am7xxx.c b/src/am7xxx.c
index c080660..e809c55 100644 (file)
--- a/src/am7xxx.c
+++ b/src/am7xxx.c
@@ -109,6 +109,7 @@ struct _am7xxx_device {
        uint8_t buffer[AM7XXX_HEADER_WIRE_SIZE];
        am7xxx_device_info *device_info;
        am7xxx_context *ctx;
+       const struct am7xxx_usb_device_descriptor *desc;
        am7xxx_device *next;
 };
 
@@ -451,7 +452,8 @@ static void log_message(am7xxx_context *ctx,
        return;
 }
 
-static am7xxx_device *add_new_device(am7xxx_context *ctx)
+static am7xxx_device *add_new_device(am7xxx_context *ctx,
+                                    const struct am7xxx_usb_device_descriptor *desc)
 {
        am7xxx_device **devices_list;
        am7xxx_device *new_device;
@@ -469,6 +471,7 @@ static am7xxx_device *add_new_device(am7xxx_context *ctx)
        memset(new_device, 0, sizeof(*new_device));
 
        new_device->ctx = ctx;
+       new_device->desc = desc;
 
        devices_list = &(ctx->devices_list);
 
@@ -565,7 +568,7 @@ static int scan_devices(am7xxx_context *ctx, scan_op op,
                                        info(ctx, "am7xxx device found, index: %d, name: %s\n",
                                             current_index,
                                             supported_devices[j].name);
-                                       new_device = add_new_device(ctx);
+                                       new_device = add_new_device(ctx, &supported_devices[j]);
                                        if (new_device == NULL) {
                                                /* XXX, the caller may want
                                                 * to call am7xxx_shutdown() if