It depends on which card you're using. If you're using a card that exports lots of 8250/16450/16550 chips then sure, the default serial driver only tries to probe 4.
Lots of multiport serial cards have their own driver, do their own "thing" and aren't supported by the PC serial driver; they have different restrictions. Adrian On Fri, Jun 27, 2008, Voytek Eymont wrote: > > On Fri, June 27, 2008 6:57 pm, Jobst Schmalenbach wrote: > > > http://www.verbatim.com.au/technotes/Linux_S.txt > > this says, inter alia: > > -------------------- > Since Linux only support 4 serial ports (ttyS0, ttyS1, ttyS2, ttyS3) under > the default condition. Most likely, ttyS0 & ttyS1 are supported by mother > board's built-in serial controllers and ttyS2 & ttyS3 are free for > additional I/O card. > -------------------- > > so, if I have 2 ports on main board, what will I need to do to get 6 ports > in total ?? > > -- > Voytek > > -- > SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ > Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html -- - Xenion - http://www.xenion.com.au/ - VPS Hosting - Commercial Squid Support - - $25/pm entry-level VPSes w/ capped bandwidth charges available in WA - -- SLUG - Sydney Linux User's Group Mailing List - http://slug.org.au/ Subscription info and FAQs: http://slug.org.au/faq/mailinglists.html
