diff options
| author | hathach <[email protected]> | 2020-05-28 13:48:02 +0700 |
|---|---|---|
| committer | hathach <[email protected]> | 2020-05-28 13:48:02 +0700 |
| commit | 10cd3f24bf0af9b7a1f357505ebbb5ef2132e34b (patch) | |
| tree | 36c1c14d5d53651ab32bdc0b08e15278da92ed57 /src/class/cdc/cdc_device.c | |
| parent | c1db36a15c1e38adc142ec74fd5f3b0320053cc9 (diff) | |
initial transfer failed in open() shouldn't cause the driver open to fail.
Diffstat (limited to 'src/class/cdc/cdc_device.c')
| -rw-r--r-- | src/class/cdc/cdc_device.c | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/src/class/cdc/cdc_device.c b/src/class/cdc/cdc_device.c index a24f348f4..a8a58980a 100644 --- a/src/class/cdc/cdc_device.c +++ b/src/class/cdc/cdc_device.c @@ -231,8 +231,6 @@ uint16_t cdcd_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint1 // Note: 0xFF can be used with RNDIS TU_VERIFY(tu_within(CDC_COMM_PROTOCOL_NONE, itf_desc->bInterfaceProtocol, CDC_COMM_PROTOCOL_ATCOMMAND_CDMA), 0); - uint16_t len = 0; - // Find available interface cdcd_interface_t * p_cdc = NULL; uint8_t cdc_id; @@ -249,13 +247,13 @@ uint16_t cdcd_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint1 //------------- Control Interface -------------// p_cdc->itf_num = itf_desc->bInterfaceNumber; + uint16_t len = sizeof(tusb_desc_interface_t); uint8_t const * p_desc = tu_desc_next( itf_desc ); - len = sizeof(tusb_desc_interface_t); // Communication Functional Descriptors while ( TUSB_DESC_CS_INTERFACE == tu_desc_type(p_desc) && len <= max_len ) { - len += tu_desc_len(p_desc); + len += tu_desc_len(p_desc); p_desc = tu_desc_next(p_desc); } @@ -266,7 +264,7 @@ uint16_t cdcd_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint1 p_cdc->ep_notif = ((tusb_desc_endpoint_t const *) p_desc)->bEndpointAddress; - len += tu_desc_len(p_desc); + len += tu_desc_len(p_desc); p_desc = tu_desc_next(p_desc); } @@ -275,12 +273,13 @@ uint16_t cdcd_open(uint8_t rhport, tusb_desc_interface_t const * itf_desc, uint1 (TUSB_CLASS_CDC_DATA == ((tusb_desc_interface_t const *) p_desc)->bInterfaceClass) ) { // next to endpoint descriptor + len += tu_desc_len(p_desc); p_desc = tu_desc_next(p_desc); // Open endpoint pair TU_ASSERT( usbd_open_edpt_pair(rhport, p_desc, 2, TUSB_XFER_BULK, &p_cdc->ep_out, &p_cdc->ep_in), 0 ); - len += sizeof(tusb_desc_interface_t) + 2*sizeof(tusb_desc_endpoint_t); + len += 2*sizeof(tusb_desc_endpoint_t); } // Prepare for incoming data |