ARMmbed
/
mbed-os
mirror of https://github.com/ARMmbed/mbed-os.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

Avoid USBCDC send_nb break the continuation use case

pull/15473/head
cyliang tw 2023-12-13 13:53:27 +08:00
parent c30af6a7df
commit 126d767a59
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/usb/source/USBCDC.cpp
View File

@ -391,7 +391,7 @@ void USBCDC::send_nb(uint8_t *buffer, uint32_t size, uint32_t *actual, bool now)
uint32_t free = sizeof(_tx_buffer) - _tx_size; uint32_t free = sizeof(_tx_buffer) - _tx_size;
uint32_t write_size = free > size ? size : free; uint32_t write_size = free > size ? size : free;
if (size > 0) { if (size > 0) {
memcpy(_tx_buf, buffer, write_size); memcpy(_tx_buf + _tx_size, buffer, write_size);
} }
_tx_size += write_size; _tx_size += write_size;
*actual = write_size; *actual = write_size;