Kenneth R. Crudup

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LINUX/EMBEDDED SOFTWARE ENGINEER

Last revision: May 2012

Offering Linux/Solaris/UNIX systems experience in the following areas:

Applications/Utility/Kernel/Device/Embedded Systems Development, User Applications,

Porting, Operations, Communications, Networking, and QA

Proficiencies

.All major varieties of Unix (20+ years) including, but not limited to: Linux (10+

years), kernel and driver programming (12+ years), applications development (17+ years),

and Embedded Systems (incl. Android) (6+ years)

.C/C++ language (20+ years), Java (2 years), Assembly language (20+ years), Unix shell

programming (18+ years), threaded programming (7 years) and Perl (2 years)

.X86, X86_64 and ARM, MIPS and Power-PC SoC architectures, at C/C++/Java and Assembly-

language levels

.Git (3 years) Makefiles (12+ years) Clearcase (8 years), SCCS (12 years), CVS (6 years),

Purify (3 years) and other build environments

.GDB (8 years), DBX (6 years), and other debugging environments

.ISA (10 years), PCI (6 years), VME (5 years) SCSI (8 years) and SBus (2 years) device

and bus architectures

.Networking (TCP/IP, LAN, Ethernet, IEEE 802.3, WiFi (802.11a/b/g/n)) (16+ years), and

other peer-to-peer/IPC environments

.NFS (10 years), EXT-2/3/4 (4+ years), ISO 9660 (4 years), and other filesystem

environments and development

Education

.BS, Electrical Engineering, Purdue University, 1988

Recent Work Experience

Lab126 (Amazon),

Cupertino CA July 2011-Present

Responsibilities: Android Kernel Development, Linux Kernel Device-Driver Development and

Android Platform Internals Development for the Kindle Fire and upcoming Amazon products

using TI s 4430/4460/4470 SoCs

Sierra Wireless Incorporated, Newark CA July 2011-Present

Responsibilities: Embedded Linux Kernel Development and Embedded Linux Kernel Device-

Drivers for SWI s line of Mobile- and Enterprise-WAN Communications devices.

Sony Ericsson Mobile Communications, San Diego/Redwood Shores, CA July 2009-June 2011

Responsibilities: Developing BSP and Device Drivers for the Xperia Play Android-based

handset using Qualcomm chipsets. Linux kernel, Android applications, JTAG, Input layer,

WiFi and BT.

Celio Corp, Salt Lake City, UT February 2009-June 2009

Responsibilities: Embedded developer for Linux and the Google Android OS. Wrote USB

networking driver for Google G1 Android phone. Developed Java customer application on

Android OS. Enhanced client's graphics-based application.

Broadcom, Irvine, CA October 2008-January 2009

Responsibilities: Developing USB and SPI device-drivers for Broadcom's proprietary MIPS-

based Linux kernels.

ArtLogic, Pasadena, CA August 2008-October 2008

Responsibilities: Implementing Linux kernel drivers on a Freescale I.MX ARM processor

for: several I2C-based devices, an SPI-driven device, and developing an input-layer for a

keyboard device for real-time apps.

WatchGuard Technologies, Seattle, WA December 2007-August 2008

Responsibilities: Kernel, device-driver and applications development for an Internet

Security firm using embedded Linux on ARM, X86 and X86-64 chipsets. Netfilter modules,

bootloader development, NAND flash drivers and Perforce source-code control were also the

focus of my efforts.

ONZ/VA, San Clemente, CA Feb 2007-December 2007

Responsibilities: Kernel, device-driver and applications development for this consulting

firm. Subsets include embedded controllers, video and motion JPEG, USB host and device,

WiFi (802.11) driver development, bootloader and JTAG, and ARM and PPC (PowerPC)

architectures

Village EDocs, Tustin, CA October 2006-May 2007

Responsibilities: Maintenance of and enhancements to a large-scale commercial fax service

running on Solaris, including additional MySQL database support and fileserver

modifications.

IMS Associates, Anaheim, CA April 2006-April 2007

Responsibilities: Implementation, maintenance and development of embedded-Linux tools,

applications and controls for qualification testing of In-Flight Entertainment (IFE)

avionics systems for several aircraft types. These systems included Fibre-Channel and

removable USB hard-disk drives, CDMA and GSM modems, AIT tape drives and DVD-recordable

drives as standard equipment. I also enhanced the kernel and device-driver environment for

these systems.

Vetronix Corporation, Santa Barbara, CA June 2005-October 2005

Responsibilities: Implementation of an automobile CAN Bus (Controller Area Network)

kernel driver for an XScale ARM embedded-Linux OEM diagnostic product. I was also

responsible for the upkeep and development of the kernel, kernel modules, and a toolchain

and filesystem for the embedded product.

Western Digital Corportation, Lake Forest, CA May 2005-July 2005

Responsibilities: Enhancement of a Silicon Image SATA chip driver on an IOP321 Xscale ARM-

based disk drive tester product running Nucleus RTOS.

Ideal Industries, San Diego, CA May 2005-April 2006

Responsibilities: Implementation of a Qt-Embedded based GUI for an OEM cable-tester

product on an embedded-Linux system running an Xscale ARM processor. Also responsible for

the maintenance of the toolchain and filesystem, as well as the MMC/SD kernel driver and

the Qtopia PIM framework.

Visijet Corporation, Irvine, CA August 2004-January 2006

Responsibilities: Implementation of the embedded ARM Linux-based, Qt GUI provided

touchscreen front-end controller for the "PulsaTome" medical device, from start

(bootloader) to finish (Qt-based GUI and related utilities and serial communications

protocols to the medical device's hardware.

Thales Avionics, Irvine, CA August 2004-November 2004

Responsibilities: Implementation of the embedded ARM Linux-based kernel portion of their

IPCU In-Flight Multimedia System avionics. This involved getting a 2.6 kernel up and

running on custom hardware based on the TI OMAP processor.

IO Interconnect, Santa Ana, CA June 2004-August 2004

Responsibilities: Getting their unreleased multimedia device, based on an embedded Intel-

based architecture running Linux to market. I am the device and build lead, working with

the GUI lead.

Ixia Communications, Calabasas, CA September 2003-May 2004

Responsibilities: At Ixia I was the Senior Software Engineer for the IxiSCSI SCSI-over-

IP testing product. This product was primarily software run on their proprietary testing

hardware, an embedded system running Linux and using Power-PC CPUs

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