Messages in this thread | | | From | Jeff Randall <> | Subject | Re: Larger dev_t | Date | Wed, 28 Mar 2001 10:59:09 -0600 (CST) |
| |
Russell King wrote: > I for one would like to see a major number for all 'serial ports' whether > they be embedded ARM serial ports _or_ standard 16550 ports, but at the > moment its not easily acheivable without introducing more mess. > > Ted indicated to me a while ago (just after I wrote serial_core.c for > yet-another-type-of-ARM-serial-port) his visions of the direction serial > stuff should take in 2.5; this is obviously one of the things that I'm > keen to discuss and solve in 2.5.
A change to a 12:20 major:minor dev_t would be a great help for the various serial drivers that I write and help maintain. We currently as a company maintain 4 different serial device drivers for linux and all of them currently use between 4 and 10 majors in order to have enough raw minors available to identify the maximum port count supported. We had to do the same think on SunOS (which also has 8:8) in order to support reasonable port counts there. I'd absoultely love the ability to get back on a single major per driver.
I'd like to see all of the serial drivers shipped in the kernel tree be configured by default to use the same major.. but I wouldn't want to have external drivers forced onto that major as well.
-- Jeff Randall - Jeff_Randall@digi.com "A paranoid person is never alone, he knows he's always the center of attention..." - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |