Learning Linux Device Drivers Programming advice needed

On Sun, 24 Apr 2005 06:13:15 -0700, Maximus

Not surprising. The 3rd edition almost buttumes that you have read the 2nd edition; it concentrates on the newer features.

See if you can find a 1st or 2nd edition in a used bookstore. If not, they are on the web (check xml.org).

Sure!

Insert a #1 paper clip between pins 4 & 5 on your parallel port connector. Now, you've got a dandy device that will generate interrupts and the whole shebang.

Be sure to visit more times you read it, the more sense it will make.

in the "Kernel" section. Don't freak about this being a subscription news site: everything a week old is free. If you can, subscribe to the paid content (this week's info) -- I think it's about $5.00USD per month.

Be very, very careful about stuff you read on the web. Lots of articles get written and orphaned, so they might not be current and up to date. Interfaces within the kernel change *with* *every* *version*, so be sure you are looking at an example for a 2.6 kernel or better (the 2.4 stuff is getting stale and has been moved to legacy support).

Since device drivers supply the kernel with knowledge of how to translate system calls such as open(2), close(2), read(2), write(2), et. al., into hardware operations, you need to be intimately familiar with, ahem, the actual hardware involved. You should at least be able to read a block diagram, a schematic, and a hardware reference book. Search online for the hardware specifications for PC serial ports to get a feel for this type of information.

HTH