From: "Adrian Hoe" <byhoe@greenlime.com>
Subject: Re: POSIX.Memory_Mapping.Map_Memory
Date: 30 Jan 2005 08:02:33 -0800
Date: 2005-01-30T08:02:33-08:00 [thread overview]
Message-ID: <1107100953.572623.128530@f14g2000cwb.googlegroups.com> (raw)
In-Reply-To: <m3sm4japtn.fsf@0x5358c0df.boanxx18.adsl-dhcp.tele.dk>
Mark Lorenzen wrote:
>
> I corrected the above mentioned problem and successfully opened and
> mapped a file. Strange.
Yes. I made a mistake. It should be:
if (buf == MAP_FAILED)
and it gave me error as well. And the strace says:
open("/dev/video0", O_RDWR) = 3
mmap2(NULL, 230400, PROT_READ|PROT_WRITE, MAP_SHARED, 3, 0) = -1 EINVAL
(Invalid argument)
fstat64(1, {st_mode=S_IFCHR|0620, st_rdev=makedev(136, 1), ...}) = 0
m
mmap gives EINVAL in my C and Ada programs.
--
Adrian Hoe
next prev parent reply other threads:[~2005-01-30 16:02 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-29 15:58 POSIX.Memory_Mapping.Map_Memory Adrian Hoe
2005-01-29 16:20 ` POSIX.Memory_Mapping.Map_Memory Mark Lorenzen
2005-01-29 16:31 ` POSIX.Memory_Mapping.Map_Memory Adrian Hoe
2005-01-29 18:44 ` POSIX.Memory_Mapping.Map_Memory Mark Lorenzen
2005-01-30 2:45 ` POSIX.Memory_Mapping.Map_Memory Adrian Hoe
2005-01-30 2:48 ` POSIX.Memory_Mapping.Map_Memory Adrian Hoe
2005-01-30 15:39 ` POSIX.Memory_Mapping.Map_Memory Mark Lorenzen
2005-01-30 16:02 ` Adrian Hoe [this message]
2005-01-30 16:19 ` POSIX.Memory_Mapping.Map_Memory Mark Lorenzen
2005-01-30 16:36 ` POSIX.Memory_Mapping.Map_Memory Mark Lorenzen
2005-01-30 18:51 ` POSIX.Memory_Mapping.Map_Memory Florian Weimer
2005-02-27 6:59 ` POSIX.Memory_Mapping.Map_Memory Adrian Hoe
2005-02-27 13:03 ` POSIX.Memory_Mapping.Map_Memory Mark Lorenzen
2005-01-30 16:05 ` POSIX.Memory_Mapping.Map_Memory Adrian Hoe
2005-01-30 16:22 ` POSIX.Memory_Mapping.Map_Memory Mark Lorenzen
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