lkml.org 
[lkml]   [2005]   [Jul]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    SubjectRe: serial: 8250 fails to detect Exar XR16L2551 correctly
    From
    Date
    On Mon, 2005-07-11 at 21:17 +0100, Russell King wrote:
    > On Mon, Jul 11, 2005 at 02:00:57PM -0600, Alex Williamson wrote:
    > > On Mon, 2005-07-11 at 20:46 +0100, Russell King wrote:
    > > > There was a bug in this area - does it happen with latest and greatest
    > > > kernels?
    > >
    > > Yes, I'm using a git pull from ~5hrs ago. How recent was the bug
    > > fix? It worked fine before I applied David's patch, the A2 UART was
    > > detected as a 16550A. Thanks,
    >
    > The fix for this went in on 21st May 2005, so obviously it's not
    > actually fixed.

    No, I think this is a problem with the broken A2 UARTs getting
    confused in serial8250_set_sleep(). If I remove either UART_CAP_SLEEP
    or UART_CAP_EFR from the capabilities list for this UART, it behaves
    normally. Also, just commenting out the UART_CAP_EFR chunks of
    set_sleep make it behave. I'll ping Exar for more data. Thanks,

    Alex

    --
    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 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/

    \
     
     \ /
      Last update: 2005-07-11 23:24    [W:0.022 / U:0.912 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site