wiki:pcn

Version 57 (modified by Ryan Erbstoesser, 4 years ago) ( diff )

add pcn54

Product Change Notification

  1. Product Change Notification
    1. PCN1 - GW53xx Revision F
    2. PCN2 - GW520x Revision D
    3. PCN3 - Laguna Software Update
    4. PCN4 - GW551x Software Update
    5. PCN5 - GW17001 WiFi Radio EOL
    6. PCN6 - GSC Firmware Update - V49
    7. PCN7 - Ventana Software Update
    8. PCN8 - GW54xx Revision E
    9. PCN9 - GW552x Revision C
    10. PCN10 - GW553x Revision B
    11. PCN11 - GW551x Revision C
    12. PCN12 - GW51xx Revision F
    13. PCN13 - GW54xx Revision F
    14. PCN14 - GW522x Revision D and D.1
    15. PCN15 - Errata HW20: GW551x-C 16bit YUV HDMI capture not supported
    16. PCN16 - GW551x Revision D
    17. PCN17 - Errata HW21: Ventana boards with PCIe bridge PERST issue
    18. PCN18 - GW522x Revision E
    19. PCN19 - GW6300 Revision B
    20. PCN20 - GW6300 Revision C
    21. PCN21 - GSC Firmware Update - V50
    22. PCN22 - GSC Firmware Update - V51
    23. PCN23 - GSC Firmware Update - V52
    24. PCN24 - Ventana Software Update
    25. PCN25 - Ventana FLASH geometry layout change
    26. PCN26 - Various Newport Errata
    27. PCN27 - Newport Fan Tachometer Improvements
    28. PCN28 - GW640x Revision B
    29. PCN29 - GW22x Revision F
    30. PCN30 - Newport CAN Bus Errata
    31. PCN31 - Newport Revision Updates
    32. PCN32 - GSC Firmware Update - V53
    33. PCN33 - Ventana Revision Updates - NAND Flash
    34. PCN34 - April 2019 GPS Rollover
    35. PCN35 - Newport Software Update
    36. PCN36 - GW17039 WiFi Radio EOL
    37. PCN37 - GSC Firmware Update - V54
    38. PCN38 - Laguna Single Board Computers End of Life Announcement
    39. PCN39 - GSC Firmware Update - V55
    40. PCN40 - Ventana Errata 23-26 - End of Life Parts on Ventana
    41. PCN41 - Ventana GW53xx & GW54xx Revision G
    42. PCN42 - Newport GSC Errata
    43. PCN43 - GW16082 Mini-PCI Expansion Module Discontinued
    44. PCN44 - GSC Firmware Update - V56
    45. PCN45 - GW5910 Revision C
    46. PCN46 - GW5913 Revision B
    47. PCN47 - GW552x Revision D
    48. PCN48 - Newport Reverse Current Susceptibility Errata
    49. PCN49 - Newport GW6903 LED Errata
    50. PCN50 - Ventana Reverse Current Susceptibility Errata
    51. PCN51 - GW640x Revision C
    52. PCN52 - Ventana GW53xx & GW54xx MAC Address Errata
    53. PCN53 - GW53xx Revision G.1 & GW54xx Revision G.2
    54. PCN54 - GW16130 Satellite Modem Default Configuration

Product Change Notifications (PCNs) are issued when errata or new revisions are released for Gateworks SBCs. Subscribe to the following Google group to get automatic PCN notifications.

There are two ways to subscribe:

  1. Send email to pcn+subscribe@gateworks.com
    • This does not require a Google account and will send PCN notifications as e-mails
  2. Join group at URL https://groups.google.com/a/gateworks.com/d/forum/pcn
    • This requires a Google account and provides a forum-like User Interface which provides a richer experience including history

PCN Events are triggered by several sources:

  1. Errata - Ventana - Ventana / Laguna
  2. ECO - New Board Revision
  3. GSC firmware updates - changes to GSC firmware that ships on non revision locked board models by default
  4. Firmware image updates - changes to pre-built firmware image that ships on non revision locked board models by default (bootloaders + OS)
  5. Product End Of Life (EOL) notification (single board computers as well as popular OEM add-on cards re-sold through the store)

PCN1 - GW53xx Revision F

  • Date: 02-11-2016
  • GW53xx was updated to Revision F. See the following link for specific details: GW53xx Revision F

PCN2 - GW520x Revision D

  • Date: 02-18-2016
  • GW52xx was updated to Revision D. See the following link for specific details: GW52xx Revision D

PCN3 - Laguna Software Update

  • Date: 04-05-2016
  • PCN: All Gateworks Laguna family products manufactured after 4/5/2016 will have firmware built from the Gateworks Laguna Bootloader r779 and OpenWrt 14.08 r794 BSP

The new image includes:

For details about the latest Gateworks OpenWrt BSP please see: http://trac.gateworks.com/wiki/OpenWrt

More information:

  • Gateworks updates the software that is shipped on standard product when it is considered stable and mature as they see best fit.
  • Gateworks is happy to lock software revisions for customers who participate in the Gateworks Specials program. More information can be found here: http://trac.gateworks.com/wiki/specials

PCN4 - GW551x Software Update

  • Date: 04-13-2016
  • PCN: All Gateworks Ventana GW551x products manufactured after 4/13/2016 will ship with software built from the Gateworks Yocto 1.8 20160407 BSP.

Gateworks Yocto 1.8 multimedia-image (2016-04-07)

  • Bootloader: U-Boot 2015.04-ge149149 (Apr 06 2016 - 13:18:17)
  • Yocto 1.8.2 (Fido)
  • Kernel: 3.14.48-1.0.x_ga+yocto+g07ca760
  • Wireless drivers from linux-backports: 20160122

For details about The Gateworks Yocto BSP please see: http://trac.gateworks.com/wiki/Yocto

More information:

  • Gateworks updates the software that is shipped on standard product when it is considered stable and mature as they see best fit.
  • Gateworks is happy to lock software revisions for customers who participate in the Gateworks Specials program. More information can be found here: http://trac.gateworks.com/wiki/specials

PCN5 - GW17001 WiFi Radio EOL

  • Date: 04-18-2016
  • PCN: Gateworks has been notified by suppliers that the Mini-PCIe Ubiquiti SR71E (GW17001) is going End of Life effective May 2016.

Please contact sales@… before 5/1/2016 to make any last time purchases.

Gateworks has other radio models that can possibly be used as a replacement. Please see the following link for more information:

PCN6 - GSC Firmware Update - V49

  • Date: 04-20-2016
  • PCN: All Gateworks Ventana and Laguna family products manufactured after 4/5/2016 will have Gateworks System Controller (GSC) firmware version 49.

For details about the Gateworks System Controller (GSC) firmware revisions please see: http://trac.gateworks.com/wiki/gsc#revisions

More information:

  • Gateworks updates the software that is shipped on standard product when it is considered stable and mature as they see best fit.
  • Gateworks is happy to lock software revisions for customers who participate in the Gateworks Specials program. More information can be found here: http://trac.gateworks.com/wiki/specials

PCN7 - Ventana Software Update

  • Date: 06-29-2016
    • PCN: All Gateworks Ventana GW51xx, GW52xx, GW53xx, GW54xx, GW552x, GW553x products manufactured after 6/29/2016 will have an updated OpenWrt Software.

More Information:

  • Gateworks OpenWrt 16.02 BSP including the following updates:
    • Bootloader: U-Boot 2015.04-00134-g3126d82 (May 03 2016 - 06:36:06)
      • Added support for GW5530
  • OpenWrt 16.02@791d5c5 (20160623)
    • Added support for GW5530

For details about the latest Gateworks OpenWrt BSP please see: http://trac.gateworks.com/wiki/OpenWrt

PCN8 - GW54xx Revision E

  • Date: 07-01-2016
  • GW54xx was updated to Revision E. See the following link for specific details: GW54xx Revision E

PCN9 - GW552x Revision C

  • Date: 08-01-2016
  • GW552x was updated to Revision C & C.1. See the following link for specific details: GW552x Revision C & C.1

PCN10 - GW553x Revision B

  • Date: 08-30-2016
  • GW553x was updated to Revision B. See the following link for specific details: GW553x Revision B

PCN11 - GW551x Revision C

  • Date: 10-06-2016
  • GW551x was updated to Revision C. See the following link for specific details: GW551x Revision C

PCN12 - GW51xx Revision F

  • Date: 10-17-2016
  • GW51xx was updated to Revision F. See the following link for specific details: GW51xx Revision F

PCN13 - GW54xx Revision F

  • Date: 11-01-2016
  • GW54xx was updated to Revision F. See the following link for specific details: GW54xx Revision F

PCN14 - GW522x Revision D and D.1

  • Date: 01-06-2017
  • GW522x was updated to Revision D and D.1. See the following link for specific details: GW522x Revision D and D.1

PCN15 - Errata HW20: GW551x-C 16bit YUV HDMI capture not supported

  • Date: 03-02-2017
  • GW551x-C does not support 16bit YUV HDMI capture. See Errata HW20 for details.

PCN16 - GW551x Revision D

  • Date: 03-02-2017
  • GW551x was updated to Revision D. See the following link for specific details: GW551x Revision D

PCN17 - Errata HW21: Ventana boards with PCIe bridge PERST issue

  • Date: 06-07-2017
  • Recent revision Ventana boards with PCIe bridges may have issues enumerating 1st generation QCA PCIe 802.11n radio devices. See Errata HW21 for details.

PCN18 - GW522x Revision E

  • Date: 12-02-2017
  • GW522x was updated to Revision E. See the following link for specific details: GW522x Revision E

PCN19 - GW6300 Revision B

  • Date: 01-04-2018
  • Newport GW6300 was updated to Revision B & B.2 & B.3. See the following link for specific details: GW6300 Revision B

PCN20 - GW6300 Revision C

  • Date: 04-12-2018
  • Newport GW6300 was updated to Revision C. See the following link for specific details: GW6300 Revision C

PCN21 - GSC Firmware Update - V50

  • Date: 06-04-2018
  • PCN: All Gateworks Ventana and Laguna family products manufactured after 06/04/2018 will have Gateworks System Controller (GSC) firmware version 50.

For details about the Gateworks System Controller (GSC) firmware revisions please see: http://trac.gateworks.com/wiki/gsc#revisions

More information:

  • Gateworks updates the software that is shipped on standard product when it is considered stable and mature as they see best fit.
  • Gateworks is happy to lock software revisions for customers who participate in the Gateworks Specials program. More information can be found here: http://trac.gateworks.com/wiki/specials

PCN22 - GSC Firmware Update - V51

  • Date: 04-05-2018
  • PCN: All Gateworks Newport family products manufactured after 04/05/2018 will have Gateworks System Controller (GSC) firmware version 51.

For details about the Gateworks System Controller (GSC) firmware revisions please see: http://trac.gateworks.com/wiki/gsc#revisions

More information:

  • Gateworks updates the software that is shipped on standard product when it is considered stable and mature as they see best fit.
  • Gateworks is happy to lock software revisions for customers who participate in the Gateworks Specials program. More information can be found here: http://trac.gateworks.com/wiki/specials

PCN23 - GSC Firmware Update - V52

  • Date: 04-05-2018
  • PCN: All Gateworks Newport family products manufactured after 05/18/2018 will have Gateworks System Controller (GSC) firmware version 52.

For details about the Gateworks System Controller (GSC) firmware revisions please see: http://trac.gateworks.com/wiki/gsc#revisions

More information:

  • Gateworks updates the software that is shipped on standard product when it is considered stable and mature as they see best fit.
  • Gateworks is happy to lock software revisions for customers who participate in the Gateworks Specials program. More information can be found here: http://trac.gateworks.com/wiki/specials

PCN24 - Ventana Software Update

  • Date: 06-04-2018
    • PCN: All Gateworks Ventana GW51xx, GW52xx, GW53xx, GW54xx, GW552x, GW55xx products manufactured after 06/04/2018 will have an updated OpenWrt Software.

More Information:

  • Gateworks OpenWrt 16.02 BSP including the following updates:
    • Bootloader: U-Boot SPL 2015.04-g2359cd1 (Jun 04 2018 - 11:15:21)
      • Added support for GW590x
  • OpenWrt 16.02@e0899cd (20160623)
    • Added support for GW590x
    • Add nf-nat6 and usb-net-rndis drivers

For details about the latest Gateworks OpenWrt BSP please see:

PCN25 - Ventana FLASH geometry layout change

  • Date: 07-27-2018
  • Software must be updated only on Ventana boards with 2GB NAND Flash due to a EOL notification. See Errata HW22 for details.

PCN26 - Various Newport Errata

  • Date: 07-27-2018
  • The Newport family has newly added errata, including NP1,2,3,4 & 6. See Newport Errata for details.

PCN27 - Newport Fan Tachometer Improvements

  • Date: 10-24-2018
  • The Newport family has improvements related to the fan tachometer file in NP5. See Newport Errata for details.

PCN28 - GW640x Revision B

  • Date: 11-29-2018
  • Newport GW640x was updated to Revision B & B.1. See the following link for specific details: GW640x Revision B

PCN29 - GW22x Revision F

  • Date: 11-30-2018
  • Ventana GW522x was updated to Revision F. See the following link for specific details: GW522x Revision F

PCN30 - Newport CAN Bus Errata

  • Date: 12-12-2018
  • There is an errata related to CAN Bus functionality on Newport SBCs. See the following link for specific details: Newport NP7

PCN31 - Newport Revision Updates

  • Date: 1-11-2019
  • Several Newport family boards have new revisions, including the GW630x-E, GW620x-B and GW610x-B: Newport Revision Updates

PCN32 - GSC Firmware Update - V53

  • Date: 01-13-2019
  • PCN: All Gateworks Newport family products manufactured from now on will have Gateworks System Controller (GSC) firmware version 53.

Please note this is a very important GSC update for Newport products and is highly recommended. It includes thermal protection, which is crucial for protecting boards.

For details about the Gateworks System Controller (GSC) firmware revisions please see here

To download the latest, please visit the link here

More information:

  • Gateworks updates the software that is shipped on standard product when it is considered stable and mature as they see best fit.
  • Gateworks is happy to lock software revisions for customers who participate in the Gateworks Specials program. More information can be found here: http://trac.gateworks.com/wiki/specials

PCN33 - Ventana Revision Updates - NAND Flash

  • Date: 01-13-2019
  • PCN: All Gateworks Ventana family boards ending in the number 4 or having 2GB of NAND flash have been updated to reflect PCN 25 and Errata 22

See revision changes: Ventana Revision Updates

PCN34 - April 2019 GPS Rollover

  • Date: 03-28-2019
  • PCN: On April 6, 2019 there will be a GPS rollover that could affect all GPS / Timing units in the world, regardless of manufacturer.

In addition to providing accurate location information, the Global Positioning System provides accurate timing information. It also includes the ability to transmit the proper date and time to a receiver by supplying the receiver with the current week and the current number of seconds into the week. This allows the receiver to translate the date and time into a more typical format – day, month, year, and time of day.

The field from the Satellite system that contains the week number is a 10-bit binary number. This limits the range of the week number to 0 – 1023, or 1024 total weeks.

GPS week zero started January 6, 1980. The 1024 weeks counter ran out and rolled over on August 21, 1999. The week counter then reset to zero, and it has been recounting ever since. The next time the counter will reach week 1023 and rollover to zero is on April 6, 2019.

April 6, 2019 is the 1024th week and unless a GPS module or application has already accounted for this, the date may not report accurately. If the application does not use the date or if there are other sources for the date outside of the GPS module, one may not be affected.

Notes for the following GPS devices:

  • Wi2Wi GPS - Used on Ventana Boards
    • 02120775: W2SG0008i - SiRF Star IV Chipset
    • Notes: Wi2Wi provided notice indicating that Qualcomm (formerly CSR) ran extensive simulator testing and that they saw no operational issues.
  • u-blox GPS - Used on Newport and Custom Ventana Boards
    • 02120901: ZOE-M8Q-0
    • 02120830: EVA-M8M
    • Notes: As these are newer GPS chipsets, it is not expected they will face any issues. More information is available in the u-blox portal
  • Trimble GPS - Used on Avila, Cambria and Laguna Boards
    • 02120512: Copernicus 63530-00 and Copernicus 58048-20
    • 02120619: Condor 68674-05
    • Notes: Recommended to update application code to accommodate for the week number change from the GPS module. Sample code is available by emailing Gateworks Support.

Customers using Gateworks BSPs with gpsd can address this within gpsd if using another time service. Customers not using the GPS time are not affected.

For systems that have no RTC, GPSD can provide the system time. If you manually set the system clock to a date in the current year before launching gpsd you will get the correct time (gpsd has some sanity check when setting system time).

Further information:

Email Gateworks support with any further questions

PCN35 - Newport Software Update

  • Date: 04-24-2019
  • All Gateworks Newport family products manufactured after 4/25/2019 will have the following firmware updates.

The updated image includes:

  • SPL: Gateworks Newport SPL (16b07db Mon Apr 22 18:40:21 UTC 2019)
    • fixed ddr configuration issue on GW610x
    • allow PCIe Gen3 for GW640x
  • Bootloader: U-Boot 2017.09-rc1-g83a85d0 (Apr 22 2019 - 11:41:03 -0700)
  • Kernel: Gateworks Newport Linux version 4.14.4-g8cc208b
    • added 3-axis accelerometer support
    • added GW16801 support
  • RootFS: Ubuntu 18.04.2 LTS
    • package updates
    • updated QCA9984 board2.bin to support ath10k wave2 cards
    • masked wpa_supplicant service by default
  • BSP build:
    • kernel (kernel.itb) and bootscript (newport.scr) moved to linux partition /boot directory to make updating kernels and bootscripts easier

PCN36 - GW17039 WiFi Radio EOL

  • Date: 05-10-2019
  • PCN: Gateworks has been notified by suppliers that the Mini-PCIe Unex DHXA-335D (GW17039) is going End of Life effective May 2019.

This radio was for sale on the Gateworks shop at the following URL: https://shop.gateworks.com/index.php?route=product/product&product_id=208

Please contact sales@… before 6/1/2019 to make any last time purchases.

Gateworks is currently reviewing other replacement radios, but encourages selecting a radio from a variety of manufacturers on the web.

PCN37 - GSC Firmware Update - V54

  • Date: 06-06-2019
  • PCN: All Gateworks Newport family products manufactured from now on will have Gateworks System Controller (GSC) firmware version 54.

For details about the Gateworks System Controller (GSC) firmware revisions please see here

To download the latest, please visit the link here

More information:

  • Gateworks updates the software that is shipped on standard product when it is considered stable and mature as they see best fit.
  • Gateworks is happy to lock software revisions for customers who participate in the Gateworks Specials program. More information can be found here: http://trac.gateworks.com/wiki/specials

PCN38 - Laguna Single Board Computers End of Life Announcement

  • Date: 07-15-2019
  • PCN: Gateworks has been notified by the manufacturer, Marvell (formerly Cavium) that the processor used on Laguna SBCs is being discontinued, and thus so will the Laguna family.

The Laguna family includes:

  • GW2380, GW2382, GW2383, GW2387, GW2388, GW2391 and any other boards using the Cavium Econa CNS34xx processors, including customs and specials.

This is an advanced notice. Gateworks will make a last time purchase of CPUs and offer standard stock Laguna SBCs on a first-come, first-served basis, with supplies expected, but not guaranteed, to last through 2021.

For those customers requiring a higher level of certainty, Gateworks will offer a bonding program for CPUs which can then be used for scheduled releases. Gateworks can accept bonding orders up until October 18th, 2019.

Please read the entire formal announcement here: Gateworks Laguna EOL Notice

Gateworks recommends migrating / upgrading to the Ventana or Newport family of SBCs shown here

Please contact sales@gateworks.com for further questions.

PCN39 - GSC Firmware Update - V55

  • Date: 07-30-2019
  • PCN: All Gateworks Newport family products manufactured from now on will have Gateworks System Controller (GSC) firmware version 55.

Please note this is a very important GSC update for Newport products and is highly recommended. It is related to thermal protection, which is crucial for protecting boards.

For details about the Gateworks System Controller (GSC) firmware revisions please see here

To download the latest, please visit the link here

More information:

  • Gateworks updates the software that is shipped on standard product when it is considered stable and mature as they see best fit.
  • Gateworks is happy to lock software revisions for customers who participate in the Gateworks Specials program. More information can be found here: http://trac.gateworks.com/wiki/specials

PCN40 - Ventana Errata 23-26 - End of Life Parts on Ventana

  • Date: 10-11-2019
  • PCN: Several parts used on the Ventana boards are now end of life (EOL). Gateworks has found replacement parts which are incorporated into new revisions.

The parts include:

  • Analog Video Decoder
  • GPS
  • Ethernet parts

The errata is detailed at the following link along with required software updates: Ventana Errata 23-26

PCN41 - Ventana GW53xx & GW54xx Revision G

  • Date: 10-11-2019
  • PCN: Gateworks Ventana GW53xx and GW54xx family boards have been updated to revision G due to the errata in PCN40.

See detailed revision changes: Ventana Revision Updates

These revisions do require software updates detailed in Ventana Errata 23-26.

PCN42 - Newport GSC Errata

  • Date: 10-23-2019
  • PCN: Gateworks Newport SBCs (GW61xx, GW62xx, GW63xx, GW64xx) have an errata related to the GSC oscillator. Read more on the Newport Errata page under NP8: Newport NP8

PCN43 - GW16082 Mini-PCI Expansion Module Discontinued

  • Date: 12-27-2019
  • PCN: The GW16082 Mini-PCI expansion module is now end of manufacturing (EOM) due to most radio manufacturers transitioning from Mini-PCI to Mini-PCIe. Gateworks recommends using Mini-PCIe radios, which are compatible with most Gateworks SBCs and the GW16081 expansion module.

PCN44 - GSC Firmware Update - V56

  • Date: 02-24-2020
  • PCN: All Gateworks Newport family products & limited Ventana Family products manufactured from now on will have Gateworks System Controller (GSC) firmware version 56.

For details about the Gateworks System Controller (GSC) firmware revisions please see here

To download the latest, please visit the link here

More information:

  • Gateworks updates the software that is shipped on standard product when it is considered stable and mature as they see best fit.
  • Gateworks is happy to lock software revisions for customers who participate in the Gateworks Specials program. More information can be found here: http://trac.gateworks.com/wiki/specials

PCN45 - GW5910 Revision C

  • Date: 03-02-2020
  • Ventana GW5910 was updated to Revision C. See the following link for specific details: SBC Revision Wiki

PCN46 - GW5913 Revision B

  • Date: 03-02-2020
  • Ventana GW5913 was updated to Revision B. See the following link for specific details: SBC Revision Wiki

PCN47 - GW552x Revision D

  • Date: 03-02-2020
  • Ventana GW552x was updated to Revision D. See the following link for specific details: SBC Revision Wiki

PCN48 - Newport Reverse Current Susceptibility Errata

  • Date: 03-24-2020
  • PCN: Many of the Gateworks Newport SBCs (GW62xx, GW63xx, GW64xx, GW6902, GW6904, GW6905) have an errata related to a reverse current scenario. Read more on the Newport Errata page under NP9: Newport NP9

PCN49 - Newport GW6903 LED Errata

  • Date: 03-24-2020
  • PCN: The Newport GW6903 has an errata related to the front panel tri-color LED. Read more on the Newport Errata page under NP10: Newport NP10

PCN50 - Ventana Reverse Current Susceptibility Errata

  • Date: 03-24-2020
  • PCN: Some of the Gateworks Ventana SBCs (GW53xx, GW54xx, GW5912, GW5908) have an errata related to a reverse current scenario. Read more on the Ventana Errata page under HW27: Ventana HW27

PCN51 - GW640x Revision C

  • Date: 04-02-2020
  • Newport GW640x was updated to Revision C. See the following link for specific details: GW640x Revision C

PCN52 - Ventana GW53xx & GW54xx MAC Address Errata

  • Date: 05-26-2020
  • PCN: The Gateworks Ventana SBCs (GW53xx, GW54xx) revision G & G.1 respectively have an errata related to a misprogrammed MAC address for ETH1. Read more on the Ventana Errata page under HW28: Ventana HW28

PCN53 - GW53xx Revision G.1 & GW54xx Revision G.2

  • Date: 05-27-2020
  • Ventana GW53xx & GW54xx were updated to Revision G.1 & G.2 respectively. See the following link for specific details: SBC Revision Wiki

PCN54 - GW16130 Satellite Modem Default Configuration

  • Date: 07-08-2020
  • All Gateworks GW16130 Iridium Satellite Modems manufactured after 07/08/2020 will have the CBUS0 (SAT_ON) pin configured through the EEPROM to always drive a logic high to enable the modem by default at power-up. It was previously driven low by default.
  • If it is desired to have the modem GPIO controlled (rather than through the EEPROM), one can use the instructions on the following wiki page GW16130 Wiki Page. This wiki will explain how to reconfigure CBUS0 to be a GPIO and use the Linux kernel gpiolib (/sys/class/gpio) or a libftdi function to enable the modem through a GPIO. Setting the GPIO to a logic high (it will be logic low and disabled by default).
Note: See TracWiki for help on using the wiki.