Title:
METHOD AND SYSTEM FOR REAL-TIME DATA UPLOADING BY USB VIRTUAL SERIAL PORT, AND USB HOST
Document Type and Number:
WIPO Patent Application WO/2023/142301
Kind Code:
A1
Abstract:
Disclosed are a method and system for real-time data uploading by a USB virtual serial port, and a USB host. The method comprises: a virtual serial port drive creating a receiving thread in which a plurality of USB transactions are preset, each USB transaction being a USB batch upload request packet, a length requested to be uploaded by the USB batch upload request packet being the size of a batch endpoint; submitting the plurality of USB transactions to a USB host drive; when the receiving thread receives a returned data packet, transmitting the returned data packet to a serial port application layer for buffering, immediately applying for a new USB transaction, and submitting to the USB host drive; the USB host drive executing the first USB transaction in a USB transaction queue, and when data sent by a USB device is received and the data satisfies the size of the batch endpoint, ending the USB transaction, returning a data packet to the receiving thread, and immediately executing the next USB transaction in the USB transaction queue. According to the present invention, the real-time performance and transmission efficiency of data transmission of the USB virtual serial port are improved.
Inventors:
WANG CHUNHUA (CN)
Application Number:
PCT/CN2022/092048
Publication Date:
August 03, 2023
Filing Date:
May 10, 2022
Export Citation:
Assignee:
NANJING QINHENG MICROELECTRONICS CO LTD (CN)
International Classes:
G06F13/40; G06F13/42
Foreign References:
| CN114116577A | 2022-03-01 | |||
| CN107172181A | 2017-09-15 | |||
| CN101894041A | 2010-11-24 | |||
| CN106095716A | 2016-11-09 | |||
| CN101815014A | 2010-08-25 | |||
| US7035948B1 | 2006-04-25 | |||
| US20090222841A1 | 2009-09-03 |
Attorney, Agent or Firm:
NANJING HUAHENG INTELLECTUAL PROPERTY AGENCY OFFICE (GENERAL PARTNERSHIP) (CN)
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