Development Scope
Scope and Basic Check
Determine the existing foundation, technical dependencies and content that needs to be developed based on the target kernel, BSP, modules and firmware, USB combination, network management methods and business services.
Implementation and integration
Adapt serial port and data interface drivers, dial-up or connection management, and clarify routing, DNS, service startup and recovery responsibilities after network interruption.
Delivery Documentation
Deliver patches, configuration and image build instructions.
Verification and Constraints
Driver patches are confirmed according to the target kernel, BSP and module interface, and are not directly promised to be universal across versions.
Project implementation process
Verification of data and interfaces → Confirmation of technical solutions and verification use cases → Implementation of integration with the target environment → Regression of abnormal scenarios → Transfer of version data.
Verify the implementation results in the target hardware and software environment, and deliver records of associated interface configurations, version dependencies, and problem handling to facilitate subsequent integration and maintenance by the enterprise R&D team.
Project Inputs
- Target kernel, BSP, modules and firmware, USB combination, network management methods and business services.
- Design information, code, interface permissions and target test equipment can be provided.
- Source files, programs or tools expected to be delivered, inter-module integration testing responsibilities and project nodes.
- Acceptance samples, environment, test conditions and passing thresholds.
Deliverables and Acceptance
| Deliverables | Delivery content | Verification method |
|---|---|---|
| achieve results | Deliver patches, configuration and image build instructions. | Check device enumeration and interface binding. |
| Integrated data | Versions and dependencies, interface configuration, usage or deployment steps, and integration changes | Verify routing, DNS and business access. |
| Verify records | Test conditions, execution records, problem lists and regression results | Test service restart, USB exception and system startup recovery. |
The delivery scope and acceptance criteria are determined based on the target environment. Third-party SDK, licenses, laboratories, cloud resources, equipment materials and on-site support are listed separately; when the existing information is insufficient, follow-up work will be determined through interface verification or key function verification.
Frequently Asked Questions
What should I check if the module is recognized but cannot access the Internet?+
Check SIM and registration, data connection, IP and routing, DNS and target business access in sequence. Only the serial port or network card node appears, which does not prove that the entire data link has been established.
Linux 4G What information do I need to provide first for driver and dial-up adaptation?+
Please give priority to providing the target kernel, BSP, modules and firmware, USB combination, network management methods and business services. At the same time, the existing implementation, problems encountered, expected changes, and compatible test conditions are explained to facilitate the determination of implementation scope and reproduction methods.
Can it be implemented on existing products?+
You can first evaluate the scope of existing designs and versions that can be changed, retain the verified parts, and determine the interfaces and dependencies that need to be adjusted. Please note that for this service: driver patches are confirmed according to the target kernel, BSP and module interface, and are not directly promised to be universal across versions. Existing and new functions must undergo regression testing within the agreed scope after the changes.
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