On 2012-12-10, Prabhakar Lad <prabhakar.csengg@xxxxxxxxx> wrote: > Hi Woody, > > On Mon, Dec 10, 2012 at 11:54 AM, Woody Wu <narkewoody@xxxxxxxxx> wrote: >> Hi, list >> >> I found some io memory information is lost from /dev/iomem and want to >> find out why. >> >> I have a 2.6.16 kernel running on a ARM board (Samsung S3C2410). From >> the kernel log, I see 16 8250 serial ports were detected, and each of >> thoese ports has a memory address: > [Snip] > >> You see, there is no serial8250 informations. >> >> Can anyone here please tell me how this can happen? Does it mean the >> serial8250 driver don't populate or register in the /proc/iomem? >> > Can you look at the o/p of /proc/ioports and see if the entry is present here. > 'o/p'? the /proc/ioports is a zero size file, it contains nothing. I think this is because the bard is an ARM, so there is no IO ports. -- woody I can't go back to yesterday - because I was a different person then. _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
