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esp32-s2_dfu
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change usbh open driver to have max_len and return driver len

This commit is contained in:
hathach 2021-06-17 11:58:34 +07:00
parent 6e939de9d6
commit 5811122cfd
11 changed files with 104 additions and 107 deletions
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10
src/class/cdc/cdc_device.c
View File

@ -273,9 +273,6 @@ uint16_t cdcd_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint1
TU_VERIFY( TUSB_CLASS_CDC == itf_desc->bInterfaceClass &&
CDC_COMM_SUBCLASS_ABSTRACT_CONTROL_MODEL == itf_desc->bInterfaceSubClass, 0);
// Note: 0xFF can be used with RNDIS
TU_VERIFY(tu_within(CDC_COMM_PROTOCOL_NONE, itf_desc->bInterfaceProtocol, CDC_COMM_PROTOCOL_ATCOMMAND_CDMA), 0);
// Find available interface
cdcd_interface_t * p_cdc = NULL;
for(uint8_t cdc_id=0; cdc_id<CFG_TUD_CDC; cdc_id++)
@ -303,10 +300,11 @@ uint16_t cdcd_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint1
if ( TUSB_DESC_ENDPOINT == tu_desc_type(p_desc) )
{
// notification endpoint if any
TU_ASSERT( usbd_edpt_open(rhport, (tusb_desc_endpoint_t const *) p_desc), 0 );
// notification endpoint
tusb_desc_endpoint_t const * desc_ep = (tusb_desc_endpoint_t const *) p_desc;
p_cdc->ep_notif = ((tusb_desc_endpoint_t const *) p_desc)->bEndpointAddress;
TU_ASSERT( usbd_edpt_open(rhport, desc_ep), 0 );
p_cdc->ep_notif = desc_ep->bEndpointAddress;
drv_len += tu_desc_len(p_desc);
p_desc = tu_desc_next(p_desc);

62
src/class/cdc/cdc_host.c
View File

@ -149,29 +149,27 @@ void cdch_init(void)
tu_memclr(cdch_data, sizeof(cdch_data_t)*CFG_TUSB_HOST_DEVICE_MAX);
}
bool cdch_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *itf_desc, uint16_t *p_length)
uint16_t cdch_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *itf_desc, uint16_t max_len)
{
// Only support ACM
TU_VERIFY( CDC_COMM_SUBCLASS_ABSTRACT_CONTROL_MODEL == itf_desc->bInterfaceSubClass);
(void) max_len;
// Only support AT commands, no protocol and vendor specific commands.
TU_VERIFY(tu_within(CDC_COMM_PROTOCOL_NONE, itf_desc->bInterfaceProtocol, CDC_COMM_PROTOCOL_ATCOMMAND_CDMA) ||
0xff == itf_desc->bInterfaceProtocol);
// Only support ACM subclass
// Protocol 0xFF can be RNDIS device for windows XP
TU_VERIFY( TUSB_CLASS_CDC == itf_desc->bInterfaceClass &&
CDC_COMM_SUBCLASS_ABSTRACT_CONTROL_MODEL == itf_desc->bInterfaceSubClass &&
0xFF != itf_desc->bInterfaceProtocol, 0);
uint8_t const * p_desc;
cdch_data_t * p_cdc;
cdch_data_t * p_cdc = get_itf(dev_addr);
p_desc = tu_desc_next(itf_desc);
p_cdc = get_itf(dev_addr);
p_cdc->itf_num = itf_desc->bInterfaceNumber;
p_cdc->itf_protocol = itf_desc->bInterfaceProtocol; // TODO 0xff is consider as rndis candidate, other is virtual Com
p_cdc->itf_num = itf_desc->bInterfaceNumber;
p_cdc->itf_protocol = itf_desc->bInterfaceProtocol;
//------------- Communication Interface -------------//
(*p_length) = sizeof(tusb_desc_interface_t);
uint16_t drv_len = tu_desc_len(itf_desc);
uint8_t const * p_desc = tu_desc_next(itf_desc);
// Communication Functional Descriptors
while( TUSB_DESC_CS_INTERFACE == p_desc[DESC_OFFSET_TYPE] )
while( TUSB_DESC_CS_INTERFACE == tu_desc_type(p_desc) && drv_len <= max_len )
{
if ( CDC_FUNC_DESC_ABSTRACT_CONTROL_MANAGEMENT == cdc_functional_desc_typeof(p_desc) )
{
@ -179,52 +177,52 @@ bool cdch_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *it
p_cdc->acm_capability = ((cdc_desc_func_acm_t const *) p_desc)->bmCapabilities;
}
(*p_length) += p_desc[DESC_OFFSET_LEN];
drv_len += tu_desc_len(p_desc);
p_desc = tu_desc_next(p_desc);
}
if ( TUSB_DESC_ENDPOINT == p_desc[DESC_OFFSET_TYPE])
if ( TUSB_DESC_ENDPOINT == tu_desc_type(p_desc) )
{
// notification endpoint
tusb_desc_endpoint_t const * ep_desc = (tusb_desc_endpoint_t const *) p_desc;
tusb_desc_endpoint_t const * desc_ep = (tusb_desc_endpoint_t const *) p_desc;
TU_ASSERT( usbh_edpt_open(rhport, dev_addr, ep_desc) );
p_cdc->ep_notif = ep_desc->bEndpointAddress;
TU_ASSERT( usbh_edpt_open(rhport, dev_addr, desc_ep), 0 );
p_cdc->ep_notif = desc_ep->bEndpointAddress;
(*p_length) += p_desc[DESC_OFFSET_LEN];
drv_len += tu_desc_len(p_desc);
p_desc = tu_desc_next(p_desc);
}
//------------- Data Interface (if any) -------------//
if ( (TUSB_DESC_INTERFACE == p_desc[DESC_OFFSET_TYPE]) &&
if ( (TUSB_DESC_INTERFACE == tu_desc_type(p_desc)) &&
(TUSB_CLASS_CDC_DATA == ((tusb_desc_interface_t const *) p_desc)->bInterfaceClass) )
{
(*p_length) += p_desc[DESC_OFFSET_LEN];
// next to endpoint descriptor
drv_len += tu_desc_len(p_desc);
p_desc = tu_desc_next(p_desc);
// data endpoints expected to be in pairs
for(uint32_t i=0; i<2; i++)
{
tusb_desc_endpoint_t const *ep_desc = (tusb_desc_endpoint_t const *) p_desc;
TU_ASSERT(TUSB_DESC_ENDPOINT == ep_desc->bDescriptorType);
TU_ASSERT(TUSB_XFER_BULK == ep_desc->bmAttributes.xfer);
tusb_desc_endpoint_t const *desc_ep = (tusb_desc_endpoint_t const *) p_desc;
TU_ASSERT(TUSB_DESC_ENDPOINT == desc_ep->bDescriptorType && TUSB_XFER_BULK == desc_ep->bmAttributes.xfer, 0);
TU_ASSERT(usbh_edpt_open(rhport, dev_addr, ep_desc));
TU_ASSERT(usbh_edpt_open(rhport, dev_addr, desc_ep), 0);
if ( tu_edpt_dir(ep_desc->bEndpointAddress) == TUSB_DIR_IN )
if ( tu_edpt_dir(desc_ep->bEndpointAddress) == TUSB_DIR_IN )
{
p_cdc->ep_in = ep_desc->bEndpointAddress;
p_cdc->ep_in = desc_ep->bEndpointAddress;
}else
{
p_cdc->ep_out = ep_desc->bEndpointAddress;
p_cdc->ep_out = desc_ep->bEndpointAddress;
}
(*p_length) += p_desc[DESC_OFFSET_LEN];
drv_len += tu_desc_len(p_desc);
p_desc = tu_desc_next( p_desc );
}
}
return true;
return drv_len;
}
bool cdch_set_config(uint8_t dev_addr, uint8_t itf_num)

10
src/class/cdc/cdc_host.h
View File

@ -121,11 +121,11 @@ void tuh_cdc_xfer_isr(uint8_t dev_addr, xfer_result_t event, cdc_pipeid_t pipe_i
//--------------------------------------------------------------------+
// Internal Class Driver API
//--------------------------------------------------------------------+
void cdch_init(void);
bool cdch_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *itf_desc, uint16_t *p_length);
bool cdch_set_config(uint8_t dev_addr, uint8_t itf_num);
bool cdch_xfer_cb(uint8_t dev_addr, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes);
void cdch_close(uint8_t dev_addr);
void cdch_init (void);
uint16_t cdch_open (uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *itf_desc, uint16_t max_len);
bool cdch_set_config (uint8_t dev_addr, uint8_t itf_num);
bool cdch_xfer_cb (uint8_t dev_addr, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes);
void cdch_close (uint8_t dev_addr);
#ifdef __cplusplus
}

20
src/class/hid/hid_host.c
View File

@ -247,29 +247,33 @@ static bool config_get_protocol (uint8_t dev_addr, tusb_control_requ
static bool config_get_report_desc (uint8_t dev_addr, tusb_control_request_t const * request, xfer_result_t result);
static bool config_get_report_desc_complete (uint8_t dev_addr, tusb_control_request_t const * request, xfer_result_t result);
bool hidh_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *desc_itf, uint16_t *p_length)
uint16_t hidh_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *desc_itf, uint16_t max_len)
{
TU_VERIFY(TUSB_CLASS_HID == desc_itf->bInterfaceClass);
(void) max_len;
TU_VERIFY(TUSB_CLASS_HID == desc_itf->bInterfaceClass, 0);
uint16_t drv_len = sizeof(tusb_desc_interface_t);
uint8_t const *p_desc = (uint8_t const *) desc_itf;
//------------- HID descriptor -------------//
p_desc = tu_desc_next(p_desc);
tusb_hid_descriptor_hid_t const *desc_hid = (tusb_hid_descriptor_hid_t const *) p_desc;
TU_ASSERT(HID_DESC_TYPE_HID == desc_hid->bDescriptorType);
TU_ASSERT(HID_DESC_TYPE_HID == desc_hid->bDescriptorType, 0);
// not enough interface, try to increase CFG_TUH_HID
// TODO multiple devices
hidh_device_t* hid_dev = get_dev(dev_addr);
TU_ASSERT(hid_dev->inst_count < CFG_TUH_HID);
TU_ASSERT(hid_dev->inst_count < CFG_TUH_HID, 0);
//------------- Endpoint Descriptor -------------//
drv_len += tu_desc_len(p_desc);
p_desc = tu_desc_next(p_desc);
tusb_desc_endpoint_t const * desc_ep = (tusb_desc_endpoint_t const *) p_desc;
TU_ASSERT(TUSB_DESC_ENDPOINT == desc_ep->bDescriptorType);
TU_ASSERT(TUSB_DESC_ENDPOINT == desc_ep->bDescriptorType, 0);
// TODO also open endpoint OUT
TU_ASSERT( usbh_edpt_open(rhport, dev_addr, desc_ep) );
TU_ASSERT( usbh_edpt_open(rhport, dev_addr, desc_ep), 0 );
hidh_interface_t* hid_itf = get_instance(dev_addr, hid_dev->inst_count);
hid_dev->inst_count++;
@ -285,9 +289,9 @@ bool hidh_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *de
hid_itf->protocol_mode = HID_PROTOCOL_REPORT; // Per Specs: default is report mode
if ( HID_SUBCLASS_BOOT == desc_itf->bInterfaceSubClass ) hid_itf->itf_protocol = desc_itf->bInterfaceProtocol;
*p_length = sizeof(tusb_desc_interface_t) + sizeof(tusb_hid_descriptor_hid_t) + desc_itf->bNumEndpoints*sizeof(tusb_desc_endpoint_t);
drv_len += desc_itf->bNumEndpoints*sizeof(tusb_desc_endpoint_t);
return true;
return drv_len;
}
bool hidh_set_config(uint8_t dev_addr, uint8_t itf_num)

10
src/class/hid/hid_host.h
View File

@ -118,11 +118,11 @@ TU_ATTR_WEAK void tuh_hid_set_protocol_complete_cb(uint8_t dev_addr, uint8_t ins
//--------------------------------------------------------------------+
// Internal Class Driver API
//--------------------------------------------------------------------+
void hidh_init(void);
bool hidh_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *desc_itf, uint16_t *p_length);
bool hidh_set_config(uint8_t dev_addr, uint8_t itf_num);
bool hidh_xfer_cb(uint8_t dev_addr, uint8_t ep_addr, xfer_result_t result, uint32_t xferred_bytes);
void hidh_close(uint8_t dev_addr);
void hidh_init (void);
uint16_t hidh_open (uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *desc_itf, uint16_t max_len);
bool hidh_set_config (uint8_t dev_addr, uint8_t itf_num);
bool hidh_xfer_cb (uint8_t dev_addr, uint8_t ep_addr, xfer_result_t result, uint32_t xferred_bytes);
void hidh_close (uint8_t dev_addr);
#ifdef __cplusplus
}

13
src/class/msc/msc_host.c
View File

@ -360,18 +360,22 @@ static bool config_test_unit_ready_complete(uint8_t dev_addr, msc_cbw_t const* c
static bool config_request_sense_complete(uint8_t dev_addr, msc_cbw_t const* cbw, msc_csw_t const* csw);
static bool config_read_capacity_complete(uint8_t dev_addr, msc_cbw_t const* cbw, msc_csw_t const* csw);
bool msch_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *desc_itf, uint16_t *p_length)
uint16_t msch_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *desc_itf, uint16_t max_len)
{
TU_VERIFY (MSC_SUBCLASS_SCSI == desc_itf->bInterfaceSubClass &&
MSC_PROTOCOL_BOT == desc_itf->bInterfaceProtocol);
// msc driver length is fixed
uint16_t const drv_len = sizeof(tusb_desc_interface_t) + 2*sizeof(tusb_desc_endpoint_t);
TU_ASSERT(drv_len <= max_len, 0);
msch_interface_t* p_msc = get_itf(dev_addr);
tusb_desc_endpoint_t const * ep_desc = (tusb_desc_endpoint_t const *) tu_desc_next(desc_itf);
for(uint32_t i=0; i<2; i++)
{
TU_ASSERT(TUSB_DESC_ENDPOINT == ep_desc->bDescriptorType && TUSB_XFER_BULK == ep_desc->bmAttributes.xfer);
TU_ASSERT(usbh_edpt_open(rhport, dev_addr, ep_desc));
TU_ASSERT(TUSB_DESC_ENDPOINT == ep_desc->bDescriptorType && TUSB_XFER_BULK == ep_desc->bmAttributes.xfer, 0);
TU_ASSERT(usbh_edpt_open(rhport, dev_addr, ep_desc), 0);
if ( tu_edpt_dir(ep_desc->bEndpointAddress) == TUSB_DIR_IN )
{
@ -385,9 +389,8 @@ bool msch_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *de
}
p_msc->itf_num = desc_itf->bInterfaceNumber;
(*p_length) += sizeof(tusb_desc_interface_t) + 2*sizeof(tusb_desc_endpoint_t);
return true;
return drv_len;
}
bool msch_set_config(uint8_t dev_addr, uint8_t itf_num)

20
src/class/msc/msc_host.h
View File

@ -41,13 +41,6 @@
#define CFG_TUH_MSC_MAXLUN 4
#endif
/** \addtogroup ClassDriver_MSC
* @{
* \defgroup MSC_Host Host
* The interface API includes status checking function, data transferring function and callback functions
* @{ */
typedef bool (*tuh_msc_complete_cb_t)(uint8_t dev_addr, msc_cbw_t const* cbw, msc_csw_t const* csw);
//--------------------------------------------------------------------+
@ -113,17 +106,14 @@ TU_ATTR_WEAK void tuh_msc_umount_cb(uint8_t dev_addr);
// Internal Class Driver API
//--------------------------------------------------------------------+
void msch_init(void);
bool msch_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *desc_itf, uint16_t *p_length);
bool msch_set_config(uint8_t dev_addr, uint8_t itf_num);
bool msch_xfer_cb(uint8_t dev_addr, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes);
void msch_close(uint8_t dev_addr);
void msch_init (void);
uint16_t msch_open (uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *desc_itf, uint16_t max_len);
bool msch_set_config (uint8_t dev_addr, uint8_t itf_num);
bool msch_xfer_cb (uint8_t dev_addr, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes);
void msch_close (uint8_t dev_addr);
#ifdef __cplusplus
}
#endif
#endif /* _TUSB_MSC_HOST_H_ */
/// @}
/// @}

31
src/host/hub.c
View File

@ -144,29 +144,32 @@ bool hub_port_get_status(uint8_t hub_addr, uint8_t hub_port, void* resp, tuh_con
//--------------------------------------------------------------------+
void hub_init(void)
{
tu_memclr(hub_data, CFG_TUSB_HOST_DEVICE_MAX*sizeof( hub_interface_t));
tu_memclr(hub_data, CFG_TUSB_HOST_DEVICE_MAX*sizeof(hub_interface_t));
}
bool hub_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *itf_desc, uint16_t *p_length)
uint16_t hub_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *itf_desc, uint16_t max_len)
{
// not support multiple TT yet
if ( itf_desc->bInterfaceProtocol > 1 ) return false;
// hub driver does not support multiple TT yet
TU_VERIFY(TUSB_CLASS_HUB == itf_desc->bInterfaceClass &&
0 == itf_desc->bInterfaceSubClass &&
1 <= itf_desc->bInterfaceProtocol, 0);
//------------- Open Interrupt Status Pipe -------------//
tusb_desc_endpoint_t const *ep_desc;
ep_desc = (tusb_desc_endpoint_t const *) tu_desc_next(itf_desc);
// msc driver length is fixed
uint16_t const drv_len = sizeof(tusb_desc_interface_t) + sizeof(tusb_desc_endpoint_t);
TU_ASSERT(drv_len <= max_len, 0);
TU_ASSERT(TUSB_DESC_ENDPOINT == ep_desc->bDescriptorType);
TU_ASSERT(TUSB_XFER_INTERRUPT == ep_desc->bmAttributes.xfer);
//------------- Interrupt Status endpoint -------------//
tusb_desc_endpoint_t const *desc_ep = (tusb_desc_endpoint_t const *) tu_desc_next(itf_desc);
TU_ASSERT(TUSB_DESC_ENDPOINT == desc_ep->bDescriptorType &&
TUSB_XFER_INTERRUPT == desc_ep->bmAttributes.xfer, 0);
TU_ASSERT(usbh_edpt_open(rhport, dev_addr, ep_desc));
TU_ASSERT(usbh_edpt_open(rhport, dev_addr, desc_ep));
hub_data[dev_addr-1].itf_num = itf_desc->bInterfaceNumber;
hub_data[dev_addr-1].ep_in = ep_desc->bEndpointAddress;
hub_data[dev_addr-1].ep_in = desc_ep->bEndpointAddress;
(*p_length) = sizeof(tusb_desc_interface_t) + sizeof(tusb_desc_endpoint_t);
return true;
return drv_len;
}
void hub_close(uint8_t dev_addr)

10
src/host/hub.h
View File

@ -181,11 +181,11 @@ bool hub_status_pipe_queue(uint8_t dev_addr);
//--------------------------------------------------------------------+
// Internal Class Driver API
//--------------------------------------------------------------------+
void hub_init(void);
bool hub_open(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *itf_desc, uint16_t *p_length);
bool hub_set_config(uint8_t dev_addr, uint8_t itf_num);
bool hub_xfer_cb(uint8_t dev_addr, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes);
void hub_close(uint8_t dev_addr);
void hub_init (void);
uint16_t hub_open (uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const *itf_desc, uint16_t max_len);
bool hub_set_config (uint8_t dev_addr, uint8_t itf_num);
bool hub_xfer_cb (uint8_t dev_addr, uint8_t ep_addr, xfer_result_t event, uint32_t xferred_bytes);
void hub_close (uint8_t dev_addr);
#ifdef __cplusplus
}

15
src/host/usbh.c
View File

@ -984,11 +984,12 @@ static bool enum_set_config_complete(uint8_t dev_addr, tusb_control_request_t co
static bool parse_configuration_descriptor(uint8_t dev_addr, tusb_desc_configuration_t const* desc_cfg)
{
usbh_device_t* dev = &_usbh_devices[dev_addr];
uint8_t const* p_desc = (uint8_t const*) desc_cfg;
p_desc = tu_desc_next(p_desc);
uint8_t const* desc_end = ((uint8_t const*) desc_cfg) + tu_le16toh(desc_cfg->wTotalLength);
uint8_t const* p_desc = tu_desc_next(desc_cfg);
// parse each interfaces
while( p_desc < _usbh_ctrl_buf + desc_cfg->wTotalLength )
while( p_desc < desc_end )
{
// TODO Do we need to use IAD
// tusb_desc_interface_assoc_t const * desc_itf_assoc = NULL;
@ -1003,8 +1004,9 @@ static bool parse_configuration_descriptor(uint8_t dev_addr, tusb_desc_configura
TU_ASSERT( TUSB_DESC_INTERFACE == tu_desc_type(p_desc) );
tusb_desc_interface_t const* desc_itf = (tusb_desc_interface_t const*) p_desc;
uint16_t const remaining_len = desc_end-p_desc;
// Check if class is supported
// Check if class is supported TODO drop class_code
uint8_t drv_id;
for (drv_id = 0; drv_id < USBH_CLASS_DRIVER_COUNT; drv_id++)
{
@ -1034,9 +1036,8 @@ static bool parse_configuration_descriptor(uint8_t dev_addr, tusb_desc_configura
{
TU_LOG2("%s open\r\n", driver->name);
uint16_t itf_len = 0;
TU_ASSERT( driver->open(dev->rhport, dev_addr, desc_itf, &itf_len) );
TU_ASSERT( itf_len >= sizeof(tusb_desc_interface_t) );
uint16_t const itf_len = driver->open(dev->rhport, dev_addr, desc_itf, remaining_len);
TU_ASSERT( sizeof(tusb_desc_interface_t) <= itf_len && itf_len <= remaining_len);
p_desc += itf_len;
}
}

10
src/host/usbh_classdriver.h
View File

@ -45,11 +45,11 @@ typedef struct {
uint8_t class_code;
void (* const init )(void);
bool (* const open )(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const * itf_desc, uint16_t* outlen);
bool (* const set_config )(uint8_t dev_addr, uint8_t itf_num);
bool (* const xfer_cb )(uint8_t dev_addr, uint8_t ep_addr, xfer_result_t result, uint32_t xferred_bytes);
void (* const close )(uint8_t dev_addr);
void (* const init )(void);
uint16_t (* const open )(uint8_t rhport, uint8_t dev_addr, tusb_desc_interface_t const * itf_desc, uint16_t max_len);
bool (* const set_config )(uint8_t dev_addr, uint8_t itf_num);
bool (* const xfer_cb )(uint8_t dev_addr, uint8_t ep_addr, xfer_result_t result, uint32_t xferred_bytes);
void (* const close )(uint8_t dev_addr);
} usbh_class_driver_t;
// Call by class driver to tell USBH that it has complete the enumeration