Re: Dedicating an interrupt to a PC-Card slot

2002-10-21 Thread M. Warner Losh
In message: <[EMAIL PROTECTED]> "Kenneth P. Stox" <[EMAIL PROTECTED]> writes: : Well, I decided to have some fun and see if I could get a Novatel Merlin : C-201 wireless modem running under FreeBSD. It seems I have run into a : bit of a roadblock. It appears that the C-201 will only spe

Re: RE: Dedicating an interrupt to a PC-Card slot

2002-10-17 Thread Bruce Evans
On Thu, 17 Oct 2002, Matthew Dillon wrote: > :Doesn't sound like that fast an interrupt. The 16550 has a 16-byte > :send and receive fifo. Set the rx interrupt @ 14, and the tx @ 2. > :230400/8 = 28800 chars /s > :28800 / 14 = 2057 interrupts / s. This should be well within reach > :of a pentium-c

Re: RE: Dedicating an interrupt to a PC-Card slot

2002-10-17 Thread Matthew Dillon
:Doesn't sound like that fast an interrupt. The 16550 has a 16-byte :send and receive fifo. Set the rx interrupt @ 14, and the tx @ 2. :230400/8 = 28800 chars /s :28800 / 14 = 2057 interrupts / s. This should be well within reach :of a pentium-class machine. Not a good idea. If you set the r

RE: Dedicating an interrupt to a PC-Card slot

2002-10-17 Thread Don Bowman
> From: Kenneth P. Stox [mailto:stox@;imagescape.com] > > Well, I decided to have some fun and see if I could get a > Novatel Merlin > C-201 wireless modem running under FreeBSD. It seems I have run into a > bit of a roadblock. It appears that the C-201 will only speak, through > it's 16550 UAR