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SD card reading and writing method and device

A read-write method and read-write device technology, applied in the field of SD card read-write method and device, can solve problems such as unusable, achieve the effects of avoiding data loss, improving user experience, and improving read-write accuracy

Active Publication Date: 2021-09-03
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In this way, the SD card to be read and written is removed from the inserted device, and the directory used to store media files inside the inserted device will not be remounted. At this time, the application that needs to store media files has no place to store files. , making it impossible to use

Method used

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  • SD card reading and writing method and device
  • SD card reading and writing method and device
  • SD card reading and writing method and device

Examples

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Embodiment Construction

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all changes, modifications and equivalents coming within the spirit and scope of the appended claims.

[0029] figure 1 It is a schematic flow chart of an SD card reading and writing method proposed by an embodiment of the present invention. The SD card reading and writing method is configured as an SD card reading and writing device for example. The embodiment of the present invention can be applied in the process of inserting an SD card by a user using an electronic devi...

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PUM

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Abstract

The present invention proposes a method and device for reading and writing an SD card. The method for reading and writing an SD card includes judging that the SD card to be read and written is a preset SD card, and judging that the device inserted into the SD card to be read and written is connected to the device to be read. Whether to write the data in the memory to at least one preset SD card before writing the SD card; if the data is written to at least one preset SD card, then use at least one preset SD card as the target SD card; determine whether the SD card to be read and written is the target SD card; if the SD card to be read and written is the target SD card, save the written data in the SD card to be read and written, and save the data that has not been written in the memory of the device Write to the first directory in the SD card to be read and written. The present invention can write unwritten data into the memory of the device when the previously removed SD card is reinserted, thereby improving the accuracy of data reading and writing, avoiding data loss, and effectively improving user experience.

Description

technical field [0001] The invention relates to the technical field of software development, in particular to a method and device for reading and writing an SD card. Background technique [0002] When a user uses an electronic device to insert an SD card to be read and written, there is a need to expand the internal storage space of the electronic device. In the related technology, the SD card to be read and written is formatted as an internal storage device, and the media files in the internal storage space of the inserted device are moved to the SD card to be read and written, then the directory inside the inserted device for storing media files is deleted. uninstall. [0003] In this way, the SD card to be read and written is removed from the inserted device, and the directory used to store media files inside the inserted device will not be remounted. At this time, the application that needs to store media files has no place to store files. , making it unusable. Conte...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06
CPCG06F3/06
Inventor 叶甘临
Owner ZTE CORP
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