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Broadcom Releases Source Code For Drivers
I'm Not There (1956) writes "Broadcom, the world's largest manufacturer of Wi-Fi transceivers, open sources its Linux device drivers. This is a big win for Linux users, as there are a lot of users that face Wi-Fi problems when they use Linux on their laptops. With these device drivers now open source, distributions can ship them out-of-the-box, and that means no Linux Wi-Fi problems for new devices and upcoming distributions at all."
My company manufactures devices for PCs. We do NOT open source our drivers; I'll give you my two cents as to why:
1. Licensing. Our drivers include licensed code from at least two other companies - code that implements algorithms seen as proprietary and valuable by those companies. We don't have the right to publish that code, and couldn't conceivably convince them to do so.
2. Competitive advantage. We have several competitors in our market. The specs that Marketing puts on our datasheets might be optimistic in some scenarios. If we open-sourced our drivers, our competitors could easily demonstrate that to potential customers - if their drivers were closed, we would not have the equivalent opportunity to prove that their liars were worse than our liars.
3. Support. If we publish source, we will end up fielding all kinds of questions from all kinds of people about all kinds of aspects of our product. Even if we simply answer "Go away" to all those queries, there's a lot of time spent reading and replying (or simply ignoring) them. Considering that we sell our products to OEMs for a few dollars, there just isn't any margin for end user support.
4. Security. Say what you will about "security through obscurity", it still has a huge following in the corporate world. Publishing all your source code provides all kinds of opportunities for the scoundrels of the world to take advantage, from the PHB point of view.
5. Financial. There is no business case to be made to disclose this proprietary information. If I'm not going to make money from something, why should I spend the time/effort to open source it, and perhaps give away information that my competitor could use?
In Broadcom's case, there are probably others also - for example, publishing source for a Wireless card could allow operating the RF section beyond regulatory limits - transmitting/receiving out of band, transmitting with too much power, etc. This could jeopardize certification (such as FCC certification in the US) or subject the company to unwanted regulatory scrutiny.
Does this help?
And the worms ate into his brain.