This is an example of how to create an gadget with OS String support.
#include <errno.h>
#include <stdio.h>
#include <linux/usb/ch9.h>
#define VENDOR 0x1d6b
#define PRODUCT 0x0104
int main(void)
{
int ret = -EINVAL;
int usbg_ret;
.bDeviceClass = USB_CLASS_PER_INTERFACE,
.bDeviceSubClass = 0x00,
.bDeviceProtocol = 0x00,
.bMaxPacketSize0 = 64,
.idVendor = VENDOR,
.idProduct = PRODUCT,
.bcdDevice = 0x0001,
};
.manufacturer = "Foo Inc.",
.product = "Bar Gadget"
};
.
configuration =
"RNDIS",
};
.b_vendor_code = 0xBC,
.qw_sign = "MSFT100",
};
.
compatible_id =
"RNDIS",
.sub_compatible_id = "5162001",
};
usbg_ret =
usbg_init(
"/sys/kernel/config", &s);
if (usbg_ret != USBG_SUCCESS) {
fprintf(stderr, "Error on USB gadget init\n");
goto out1;
}
if (usbg_ret != USBG_SUCCESS) {
fprintf(stderr, "Error on create gadget\n");
goto out2;
}
if (usbg_ret != USBG_SUCCESS) {
fprintf(stderr, "Error creating RNDIS function\n");
goto out2;
}
if (usbg_ret != USBG_SUCCESS) {
fprintf(stderr, "Error setting function OS desc\n");
goto out2;
}
if (usbg_ret != USBG_SUCCESS) {
fprintf(stderr, "Error creating config\n");
goto out2;
}
if (usbg_ret != USBG_SUCCESS) {
fprintf(stderr, "Error adding rndis.usb0\n");
goto out2;
}
if (usbg_ret != USBG_SUCCESS) {
fprintf(stderr, "Error setting gadget OS desc\n");
goto out2;
}
if (usbg_ret != USBG_SUCCESS) {
fprintf(stderr, "Error setting gadget OS desc config\n");
goto out2;
}
if (usbg_ret != USBG_SUCCESS) {
fprintf(stderr, "Error enabling gadget\n");
goto out2;
}
ret = 0;
out2:
out1:
return ret;
}
int usbg_create_gadget(usbg_state *s, const char *name, const struct usbg_gadget_attrs *g_attrs, const struct usbg_gadget_strs *g_strs, usbg_gadget **g)
Create a new USB gadget device and set given attributes and strings.
Definition: usbg.c:1530
const char * usbg_strerror(usbg_error e)
Get the short description of error.
Definition: usbg_error.c:123
int usbg_add_config_function(usbg_config *c, const char *name, usbg_function *f)
Add a function to a configuration.
Definition: usbg.c:2366
int usbg_set_interf_os_desc(usbg_function *f, const char *iname, const struct usbg_function_os_desc *f_os_desc)
Set OS Descriptor compatibility of given function.
Definition: usbg.c:2148
int usbg_create_config(usbg_gadget *g, int id, const char *label, const struct usbg_config_attrs *c_attrs, const struct usbg_config_strs *c_strs, usbg_config **c)
Create a new USB gadget configuration.
Definition: usbg.c:2177
int usbg_enable_gadget(usbg_gadget *g, usbg_udc *udc)
Enable a USB gadget device.
Definition: usbg.c:2546
int usbg_init(const char *configfs_path, usbg_state **state)
Initialize the libusbgx library state.
Definition: usbg.c:1089
void usbg_cleanup(usbg_state *s)
Clean up the libusbgx library state.
Definition: usbg.c:1134
int usbg_create_function(usbg_gadget *g, usbg_function_type type, const char *instance, void *f_attrs, usbg_function **f)
Create a new USB gadget function and set its attributes.
Definition: usbg.c:2049
int usbg_set_os_desc_config(usbg_gadget *g, usbg_config *c)
Set configuration for OS Descriptors.
Definition: usbg.c:2525
int usbg_set_gadget_os_descs(usbg_gadget *g, const struct usbg_gadget_os_descs *g_os_descs)
Set the USB gadget OS Descriptor.
Definition: usbg.c:2014
const char * usbg_error_name(usbg_error e)
Get the error name as a constant string.
Definition: usbg_error.c:62
USB configuration strings.
Definition: usbg.h:196
USB OS Descriptor function attributes.
Definition: usbg.h:231
USB gadget device attributes.
Definition: usbg.h:132
USB gadget Microsoft OS Descriptors.
Definition: usbg.h:165
USB gadget device strings.
Definition: usbg.h:155
Definition: usbg_internal.h:117
Definition: usbg_internal.h:129
Definition: usbg_internal.h:103
Definition: usbg_internal.h:93