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WCDMA<E Linux USB Driver User Guide
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About the Document
History
Revision
Date
Author
Description
1.0
2015-02-27
Joe WANG
Initial
1.1
2015-3-25
Carl YIN
Updated supported products
1.2
2015-3-30
Kent XU
Added Zero Packet feature in Section 3.2.2 and 3.3.2
1.3
2015-06-24
Carl YIN
1. Added GobiNet and QMI WWAN description in
Section 3.4 and 3.5
2. Added building drivers as a kernel module in Section
3.2.4/3.3.4/3.4.3/3.5.4
3. Added power management in Chapter 4
4. Added FAQ and kernel log in Chapter 6
1.4
2015-12-16
1. Deleted Auto-Connect of GobiNet and QMI WWAN
2. Updated the usage of quectel-CM
1.5
2016-05-13
Carl YIN/
Neo HOU
Updated supported modules
1.6
2016-08-23
Kent XU
Added EC20 R2.0 in supported modules
1.7
2017-05-24
Kent XU
Added EG91/EG95/EG06/EP06/EM06/BG96 in supported
modules
1.8
2017-09-01
Kent XU
Updated description of supported modules and added
AG35 in supported modules.
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Contents
About the Document ................................................................................................................................... 2
Contents ....................................................................................................................................................... 3
Table Index ................................................................................................................................................... 5
Figure Index ................................................................................................................................................. 6
1 Introduction .......................................................................................................................................... 7
2 Products Overview .............................................................................................................................. 8
3 System Setup ..................................................................................................................................... 10
3.1. Linux USB Driver Structure ..................................................................................................... 10
3.2. USB Serial Driver for UCxx/EC2x/EGxx/EP06/EM06/BG96/AG35 ........................................ 11
3.2.1. Add VID and PID ............................................................................................................ 11
3.2.2. Add the Zero Packet Mechanism ................................................................................... 12
3.2.3. Add Reset Resume ........................................................................................................ 13
3.2.4. Enlarge Bulk out URBs .................................................................................................. 14
3.2.5. Use GobiNet or QMI WWAN .......................................................................................... 14
3.2.6. Modify Kernel Configuration ........................................................................................... 16
3.2.7. Build and Load Driver as A Kernel Module for PC in Linux ........................................... 17
3.3. CDC ACM Driver for UG95/UG96 ........................................................................................... 17
3.3.1. Modify Driver Source Code ............................................................................................ 17
3.3.2. Add the Zero Packet Mechanism ................................................................................... 18
3.3.3. Add Reset Resume ........................................................................................................ 18
3.3.4. Modify Kernel Configuration ........................................................................................... 19
3.3.5. Build and Load Driver as a Kernel Module for PC in Linux ........................................... 20
3.4. GobiNet Driver for UC20/EC2x/EGxx/EP06/EM06/BG96/AG35 ............................................ 20
3.4.1. Modify Driver Source Code ............................................................................................ 21
3.4.2. Modify Kernel Configuration ........................................................................................... 21
3.4.3. Build and Load Driver as a Kernel Module for PC in Linux ........................................... 22
3.5. QMI WWAN Driver for UC20/EC2x/EGxx/EP06/EM06/BG96/AG35 ...................................... 22
3.5.1. Add VID and PID ............................................................................................................ 23
3.5.2. Add Support for Raw IP Mode for EC2x/EGxx/EP06/ EM06/BG96/AG35 .................... 24
3.5.3. Modify Kernel Configuration ........................................................................................... 28
3.5.4. Build and Load Driver as a Kernel Module for PC in Linux ........................................... 29
3.6. Configure Kernel to Support PPP ............................................................................................ 30
4 Power Management ........................................................................................................................... 31
4.1. Enable USB Auto Suspend...................................................................................................... 31
4.2. Enable USB Remote Wakeup ................................................................................................. 32
5 Test the Module .................................................................................................................................. 34
5.1. Test AT Function ...................................................................................................................... 34
5.2. Test PPP Function ................................................................................................................... 35
5.3. Test GobiNet or QMI WWAN ................................................................................................... 40
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6 FAQ and Kernel Log .......................................................................................................................... 44
6.1. How to Check Whether USB Driver Exists in the Module ....................................................... 44
6.2. How to Check Whether the Module Works Well with the Corresponding USB Driver............ 44
7 Appendix A References ..................................................................................................................... 47
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