[lkml]   [2005]   [Jul]   [6]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: serial: 8250 fails to detect Exar XR16L2551 correctly
On Wed, 2005-07-06 at 19:57 +0100, Russell King wrote:
> On Tue, Jul 05, 2005 at 03:19:40PM +0100, David Vrabel wrote:
> > The 8250 serial driver detects the Exar XR16L2551 as a 16550A. The
> > XR16L2551 has an EFR register and sleep capabilities (UART_CAP_FIFO |
> > UART_CAP_EFR | UART_CAP_SLEEP). However, broken_efr() thinks it's a
> > buggy Exar ST16C255x.
> Grumble!

Double grumble...

> > Perhaps it's okay for the ST16C255x to be detected as something with
> > UART_CAP_EFR | UART_CAP_SLEEP even if it doesn't work? i.e., by removing
> > broken_efr().
> I don't know - maybe Alex Williamson can try your patch out.

I can, but not till next week when I can get into the office and dig
up the box with the broken A2 rev UARTs. Let me know if you need an
answer before then. Thanks,


Alex Williamson HP Linux & Open Source Lab

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to
More majordomo info at
Please read the FAQ at

 \ /
  Last update: 2005-07-06 22:37    [W:0.048 / U:8.988 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site