the normal way to get things into svn is to submit it to a dev and he will then committ it to the svn. by posting the diff in the forum you already submitted it to the public. now we only need a dev to verify your code. i would do it, as i am able to to committ things to the svn, but i lack the knowledge to verify your code, i really dont want to break something just because i upped a patch from a 1-post-user - don't take this as an offense.
if you continue to add new and lots of patches the devs will soon grow tired of always committing your things and sure will give you the needed rights on assembla.
welcome to the forum and thanks for already contributing. hope to see more in the future
oh maybe it is helpful to supply a compiled binary for your camera for other people to test (people without the knowledge of compiling, merging and the like). you could get feedback this way even before it is checked out to trunk.