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I own a Sandisk Sansa e260 and a Sansa c240 (radio).

Rockbox interests:

• Charging the battery quickly and safely in Rockbox. Progress: see FS#8363 and SansaCharging.
• Check power savings by disabling the display and putting the display controller in standby, see patch FS#9195.
• Fix battery bench to make it use the ata idle callback to determine if the disk is active (so it can flush its buffer) instead of polling for disk activity. The patch for a simplified battery bench using the ata idle callback is at FS#9155.
• Make USB serial work on microsoft windows with the usbser.sys driver. Progress: figured out proper standards compliant USB device/configuration descriptor and matching windows .inf file.

Ideas for new features:

• Implement a rockbox shell that allows easy on-target peeking/poking (and other things), using USB serial for stdin/stdout.
• Cleanup of APIs by stubbing implementation of the functions rather than using #ifdefs everywhere. Specifically I'm thinking of the powermanagement API and things that are #ifdeffed out for the simulator.
• Wild idea: implement display transitions like shift left/right, fade in/out when navigating menus by means of combining the two framebuffers present on the sansa e200.

Experience:

• Degree in electrical engineering
• Embedded software (9 years C)
• Microcontrollers: PIC, LPC (ARM7), AVR
• USB: wrote simple USB device stack for LPC2148 with support for MSC, virtual COM port, HID
• Reverse engineering (USB webcams, USB scanners, protocols over USB in general)
• Linux drivers
• Java (1 year)
• Basic scripting knowledge (Linux shell, perl)

Other interests:

• Electronics for biology (like bat detectors)
• Reverse engineering
• Linux hacking

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