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Added interface_class, interface_subclass, and interface_protocol to USB device info 

Currently only filled in for libusb
This commit is contained in:
Sam Lantinga 2023-05-24 14:24:04 -07:00
parent 55ed69fc9a
commit 003a9b9666
3 changed files with 21 additions and 6 deletions
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6
src/hidapi/SDL_hidapi.c
View File

@ -1057,9 +1057,9 @@ CopyHIDDeviceInfo(struct hid_device_info *pSrc, struct SDL_hid_device_info *pDst
pDst->usage_page = pSrc->usage_page;
pDst->usage = pSrc->usage;
pDst->interface_number = pSrc->interface_number;
//pDst->interface_class = pSrc->interface_class;
//pDst->interface_subclass = pSrc->interface_subclass;
//pDst->interface_protocol = pSrc->interface_protocol;
pDst->interface_class = pSrc->interface_class;
pDst->interface_subclass = pSrc->interface_subclass;
pDst->interface_protocol = pSrc->interface_protocol;
pDst->next = NULL;
}

6
src/hidapi/hidapi/hidapi.h
View File

@ -186,6 +186,12 @@ extern "C" {
Since version 0.13.0, @ref HID_API_VERSION >= HID_API_MAKE_VERSION(0, 13, 0)
*/
hid_bus_type bus_type;
/** Additional information about the USB interface.
(libusb only) */
int interface_class;
int interface_subclass;
int interface_protocol;
};
#endif /* DEFINED_HID_TYPES */

15
src/hidapi/libusb/hid.c
View File

@ -150,6 +150,9 @@ struct hid_device_ {
int config_number;
/* The interface number of the HID */
int interface;
int interface_class;
int interface_subclass;
int interface_protocol;
uint16_t report_descriptor_size;
@ -652,7 +655,7 @@ static void invasive_fill_device_info_usage(struct hid_device_info *cur_dev, lib
* Create and fill up most of hid_device_info fields.
* usage_page/usage is not filled up.
*/
static struct hid_device_info * create_device_info_for_device(libusb_device *device, libusb_device_handle *handle, struct libusb_device_descriptor *desc, int config_number, int interface_num)
static struct hid_device_info * create_device_info_for_device(libusb_device *device, libusb_device_handle *handle, struct libusb_device_descriptor *desc, int config_number, int interface_num, int interface_class, int interface_subclass, int interface_protocol)
{
struct hid_device_info *cur_dev = calloc(1, sizeof(struct hid_device_info));
if (cur_dev == NULL) {
@ -666,6 +669,9 @@ static struct hid_device_info * create_device_info_for_device(libusb_device *dev
cur_dev->release_number = desc->bcdDevice;
cur_dev->interface_number = interface_num;
cur_dev->interface_class = interface_class;
cur_dev->interface_subclass = interface_subclass;
cur_dev->interface_protocol = interface_protocol;
cur_dev->bus_type = HID_API_BUS_USB;
@ -798,7 +804,7 @@ struct hid_device_info HID_API_EXPORT *hid_enumerate(unsigned short vendor_id,
}
#endif
tmp = create_device_info_for_device(dev, handle, &desc, conf_desc->bConfigurationValue, intf_desc->bInterfaceNumber);
tmp = create_device_info_for_device(dev, handle, &desc, conf_desc->bConfigurationValue, intf_desc->bInterfaceNumber, intf_desc->bInterfaceClass, intf_desc->bInterfaceSubClass, intf_desc->bInterfaceProtocol);
if (tmp) {
#ifdef INVASIVE_GET_USAGE
/* TODO: have a runtime check for this section. */
@ -1090,6 +1096,9 @@ static int hidapi_initialize_device(hid_device *dev, int config_number, const st
/* Store off the USB information */
dev->config_number = config_number;
dev->interface = intf_desc->bInterfaceNumber;
dev->interface_class = intf_desc->bInterfaceClass;
dev->interface_subclass = intf_desc->bInterfaceSubClass;
dev->interface_protocol = intf_desc->bInterfaceProtocol;
dev->report_descriptor_size = get_report_descriptor_size_from_interface_descriptors(intf_desc);
@ -1607,7 +1616,7 @@ HID_API_EXPORT struct hid_device_info *HID_API_CALL hid_get_device_info(hid_devi
libusb_device *usb_device = libusb_get_device(dev->device_handle);
libusb_get_device_descriptor(usb_device, &desc);
dev->device_info = create_device_info_for_device(usb_device, dev->device_handle, &desc, dev->config_number, dev->interface);
dev->device_info = create_device_info_for_device(usb_device, dev->device_handle, &desc, dev->config_number, dev->interface, dev->interface_class, dev->interface_subclass, dev->interface_protocol);
// device error already set by create_device_info_for_device, if any
if (dev->device_info) {