February 2005 - Darwin-kernel

Matching and loading filter scheme driver other than "Content Hint" property
by Yogesh P 25 Feb '05

25 Feb '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Hi Folks, I had write the sample filter scheme driver long back, and it works fine by matching on the "Content Hint" property.But because of some concerns i do not want to load my filter scheme driver by matching on "Content Hint" property. Is there any way or some property other than "Content Hint" on which my filter scheme driver gets match and loads??? Or it is the only property for loading any kind of filter scheme driver???? Thanks in advance, Yogesh Pahilwan _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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RE: Multiple IOMedia objects creation in Filter Scheme Driver
by Imran 25 Feb '05

25 Feb '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Thread-index: AcUawMKNR/bMxW8oRLyYaU6qlnfIFwAPjzzQ Hi Garth, Thanks a lot Garth for your help. But the problem I am facing is not getting solved. Diskutil shows the IOMedia objects as disk2s2s1 disk2s3s1 respectively, but this IOMedia objects are not getting mounted after making file system on it. It may be that we are missing something you can point out Thanks in Advance Imran -----Original Message----- From: darwin-kernel-bounces+sayyad.asif=spsoftindia.com(a)lists.apple.com [mailto:darwin-kernel-bounces+sayyad.asif=spsoftindia.com@lists.apple.com] On Behalf Of Garth Cummings Sent: Friday, February 25, 2005 12:23 AM To: Imran Cc: darwinKernel Apple List Subject: Re: Multiple IOMedia objects creation in Filter Scheme Driver Hi Imran, On Feb 23, 2005, at 12:33 AM, Imran wrote: > Hi Garth, > Please find the output of 'ioreg -lw O' after loading my filter scheme > driver for Snap1 and Snap2 partitions with ContentHint as > "MACOSX_MyContent". <snip> This is behaving correctly. If I strip out the properties it'll be easier to see. | | | | | +-o CNSi R2500:A Media <class IOMedia, ...> | | | | | | | | | | | +-o IOMediaBSDClient <class IOMediaBSDClient, ...> | | | | | +-o IOApplePartitionScheme <class IOApplePartitionScheme, ...> | | | | | | | | | | | +-o Apple@1 <class IOMedia, ...> | | | | | | | | | | | | | +-o IOMediaBSDClient <class IOMediaBSDClient, ...> | | | | | +-o Snap1@2 <class IOMedia, ...> | | | | | | | | | | | | | +-o IOMediaBSDClient <class IOMediaBSDClient, ...> | | | | | | | | | | | | | +-o com_MySoftwareCompany_driver_MyFilterScheme <class com_MySoftwareCompany_driver_MyFilterScheme, ...> | | | | | | | | | | | | | +-o MACOSX_MyContent 1@1 <class IOMedia, ...> | | | | | | | | | | | | | +-o IOMediaBSDClient <class IOMediaBSDClient, ...> | | | | | | | | | | | +-o Snap2@3 <class IOMedia, ...> | | | | | | | | | | | +-o IOMediaBSDClient <class IOMediaBSDClient, ...> | | | | | | | | | | | +-o com_MySoftwareCompany_driver_MyFilterScheme <class com_MySoftwareCompany_driver_MyFilterScheme, ...> | | | | | | | | | | | +-o MACOSX_MyContent 1@1 <class IOMedia, ...> | | | | | | | | | | | +-o IOMediaBSDClient <class IOMediaBSDClient, ...> | | | | | Both the Snap1 and Snap2 partitions have the same chain of objects attached: IOMedia (Snap*) > IOMediaBSDClient > com_MySoftwareCompany_driver_MyFilterScheme > IOMedia (MACOSX_MyContent) > IOMediaBSDClient. The child media objects you published are at /dev/disk2s2s1 and /dev/disk2s3s1 respectively (the "BSD Name" property in the IOMedia objects). Is this clearer now? --gc __________________________________________________________________ Garth Cummings Apple Developer Technical Support gcummings(a)apple.com http://developer.apple.com/technicalsupport _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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Re: Multiple IOMedia objects creation in Filter Scheme Driver
by Garth Cummings 24 Feb '05

24 Feb '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Hi Imran, On Feb 23, 2005, at 12:33 AM, Imran wrote: Hi Garth, Please find the output of 'ioreg -lw O' after loading my filter scheme driver for Snap1 and Snap2 partitions with ContentHint as "MACOSX_MyContent". <snip> Is this clearer now? --gc __________________________________________________________________ Garth Cummings Apple Developer Technical Support gcummings(a)apple.com http://developer.apple.com/technicalsupport _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com This is behaving correctly. If I strip out the properties it'll be easier to see. | | | | | +-o CNSi R2500:A Media <class IOMedia, ...> | | | | | | | | | | | +-o IOMediaBSDClient <class IOMediaBSDClient, ...> | | | | | +-o IOApplePartitionScheme <class IOApplePartitionScheme, ...> | | | | | | | | | | | +-o Apple@1 <class IOMedia, ...> | | | | | | | | | | | | | +-o IOMediaBSDClient <class IOMediaBSDClient, ...> | | | | | +-o Snap1@2 <class IOMedia, ...> | | | | | | | | | | | | | +-o IOMediaBSDClient <class IOMediaBSDClient, ...> | | | | | | | | | | | | | +-o com_MySoftwareCompany_driver_MyFilterScheme <class com_MySoftwareCompany_driver_MyFilterScheme, ...> | | | | | | | | | | | | | +-o MACOSX_MyContent 1@1 <class IOMedia, ...> | | | | | | | | | | | | | +-o IOMediaBSDClient <class IOMediaBSDClient, ...> | | | | | | | | | | | +-o Snap2@3 <class IOMedia, ...> | | | | | | | | | | | +-o IOMediaBSDClient <class IOMediaBSDClient, ...> | | | | | | | | | | | +-o com_MySoftwareCompany_driver_MyFilterScheme <class com_MySoftwareCompany_driver_MyFilterScheme, ...> | | | | | | | | | | | +-o MACOSX_MyContent 1@1 <class IOMedia, ...> | | | | | | | | | | | +-o IOMediaBSDClient <class IOMediaBSDClient, ...> | | | | | Both the Snap1 and Snap2 partitions have the same chain of objects attached: IOMedia (Snap*) > IOMediaBSDClient > com_MySoftwareCompany_driver_MyFilterScheme > IOMedia (MACOSX_MyContent) > IOMediaBSDClient. The child media objects you published are at /dev/disk2s2s1 and /dev/disk2s3s1 respectively (the "BSD Name" property in the IOMedia objects). smime.p7s

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Re: shm_open and mmap: Invalid argument?
by Felix Kronlage 24 Feb '05

24 Feb '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On Feb 20, 2005, at 20:51, Ethan Tira-Thompson wrote: ipcs is available through darwinports[1]. -fkr [1] <url: http://darwinports.opendarwin.org/> -- 076E 1E87 3E05 1C7F B1A0 8A48 0D31 9BD3 D9AC 74D0 http://fkr.hazardous.org/ | http://opendarwin.org/~fkr/ | FKR-RIPE _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… I've already got things working with the SysV interfaces shmget and shmat, but Mac OS X is configured with a very low number of concurrently active regions per process (I think 8?) and I don't want other users to have to tinker with kernal configuration settings, so I'm switching to the POSIX interface instead. (It was also quite annoying that SysV regions are left in memory after all references are gone. Further, OS X doesn't provide the ipcs utility, I had to download it myself in order to kill the regions manually. (thanks to whoever ported that utility... I had trouble finding it the first time and I can't find it again now :( ) This email sent to site_archiver(a)lists.apple.com

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Re: AppleLMUController & powerbook keyboard illumination in 10.3.8
by David Leimbach 24 Feb '05

24 Feb '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Domainkey-signature: a=rsa-sha1; q=dns; c=nofws; s=beta; d=gmail.com; h=received:message-id:date:from:reply-to:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:references; b=ZlHFw+10T4H05t/jFAMJis35Z8QwrlYnwQioFZqTcOqVHlZN8t1GQ+I/+zF/2889Rwxt6SXShN72GRWlhINi+stcmN0Q4Sw8YSlEZ6pSkSg8qc5VJooao96Im0iYQ84gOOypuqTyAu2C8XyIRlkYR8+ZyyMJdOB37sPi935PCNI= On Thu, 24 Feb 2005 00:00:27 +0100, Felix Kronlage <fkr(a)opendarwin.org> wrote: > > On Feb 18, 2005, at 04:19, Emory Smith wrote: > > > Feb 17 19:29:34 localhost kernel: AppleLMUController: setLEDFade - > > Fade to brightness level: 0x00000000. > > Feb 17 19:29:34 localhost kernel: AppleLMUController: setLEDFade - > > Fade to brightness level: 0x000001B1. > > Feb 17 19:29:34 localhost kernel: AppleLMUController: > > kbdFadeTimerAction. > > Feb 17 19:29:34 localhost kernel: AppleLMUController: > > setLEDBrightness - Brightness level requested at: 0x00000056. > > Feb 17 19:29:34 localhost kernel: AppleLMUController: > > kbdFadeTimerAction. > [...] > > this happens over and over but stops instantly if i > > 1. disable keyboard illumination in system preferences, or > > 2. cover up the powerbook speakers/light sensors (or just maintain > > steady light level in the room) > > looks like the driver is being a bit verbose. If all the dimming and > illumination still works correctly, I would not worry > about it. > It seems hyper-sensitive to me. In some conditions the brightness is raising and lowering itself quite a bit more than in 10.3.7. > -fkr > -- > 076E 1E87 3E05 1C7F B1A0 8A48 0D31 9BD3 D9AC 74D0 > http://fkr.hazardous.org/ | http://opendarwin.org/~fkr/ | FKR-RIPE > > _______________________________________________ > Do not post admin requests to the list. They will be ignored. > Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) > Help/Unsubscribe/Update your Subscription: > http://lists.apple.com/mailman/options/darwin-kernel/leimy2k%40gmail.com > > This email sent to leimy2k(a)gmail.com > _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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Re: AppleLMUController & powerbook keyboard illumination in 10.3.8
by Felix Kronlage 23 Feb '05

23 Feb '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On Feb 18, 2005, at 04:19, Emory Smith wrote: -fkr -- 076E 1E87 3E05 1C7F B1A0 8A48 0D31 9BD3 D9AC 74D0 http://fkr.hazardous.org/ | http://opendarwin.org/~fkr/ | FKR-RIPE _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… Feb 17 19:29:34 localhost kernel: AppleLMUController: setLEDFade - Fade to brightness level: 0x00000000. Feb 17 19:29:34 localhost kernel: AppleLMUController: setLEDFade - Fade to brightness level: 0x000001B1. Feb 17 19:29:34 localhost kernel: AppleLMUController: kbdFadeTimerAction. Feb 17 19:29:34 localhost kernel: AppleLMUController: setLEDBrightness - Brightness level requested at: 0x00000056. Feb 17 19:29:34 localhost kernel: AppleLMUController: kbdFadeTimerAction. [...] this happens over and over but stops instantly if i 1. disable keyboard illumination in system preferences, or 2. cover up the powerbook speakers/light sensors (or just maintain steady light level in the room) looks like the driver is being a bit verbose. If all the dimming and illumination still works correctly, I would not worry about it. This email sent to site_archiver(a)lists.apple.com

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Re: Callback from NKE
by Justin Walker 23 Feb '05

23 Feb '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com On Feb 23, 2005, at 11:08, Carl Smith wrote: I've lost track of exactly what you are trying to achieve. You have the right list for this kind of question. See above. ? Did the last bit of this get dropped? Regards, Justin _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… After some further research, and I don't know if this is more a Unix question than an Apple question, but what about using socreate, to assign a call back function in the Client with some defined intercepts from the kernel. I don't see how you got here. There are no kernel functions that "assign a call back function in the Client...". The kernel communicates with user code in roughly two ways: replying to requests (system calls, mach messaging, ...); or signals. The signaling scheme is again set up in user mode. The kernel can't talk to the user app unless the app has set things up to allow it. In addition, socreate() is just the kernel's implementation of the user-mode call "socket()"; it just does the setup work when the caller wants a socket to use for some purpose. I know this is done within the kernel, for system events and etc., but can it also be done in the userland? To eliminate the loop on recv() -- Justin C. Walker, Curmudgeon-At-Large * Institute for General Semantics | It's not whether you win or lose... | It's whether *I* win or lose. *--------------------------------------*-------------------------------* This email sent to site_archiver(a)lists.apple.com

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RE: Callback from NKE
by Carl Smith 23 Feb '05

23 Feb '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Thread-index: AcUVE2Y2ypk2dfZiQwSHqBhFiWqOlQExwYRg Thread-topic: Callback from NKE After some further research, and I don't know if this is more a Unix question than an Apple question, but what about using socreate, to assign a call back function in the Client with some defined intercepts from the kernel. I know this is done within the kernel, for system events and etc., but can it also be done in the userland? To eliminate the loop on recv() Thanks On Feb 17, 2005, at 8:50, Carl Smith wrote: > Excuse my igronance, being I am new to both Mac OS X and unix, from > what you wrote below, then you are saying that my select() or CFSocket > would be intiated and used in userland? Do you know of any example > code using this method? Yes, both select() and the CFSocket stuff are user-mode APIs. I don't know of any CF* documentation other than what is available at Apple's developer website (there may be other info out there), but for select(), there are several books that give a great intro to the use of select() and other BSD-style low-level APIs. Notable among them is W. Richard Stevens's "Unix Network Programming" (v. 1, 2nd ed). There is a third edition by a different author, and I'm not familiar with that. The Stevens website has some details plus a tarball of a bunch of example code that goes with the book (<http:www.kohala.com>). Stevens also has a book called "Advanced Programming in the Unix Environment" that is worth having (plus code on the site). He was an excellent expositor. Regards, Justin -- Justin C. Walker, Curmudgeon-At-Large * Institute for General Semantics | When LuteFisk is outlawed | Only outlaws will have | LuteFisk *--------------------------------------*-------------------------------* _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/csmith%40fortresstech.… This email sent to csmith(a)fortresstech.com --- Incoming mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com) Version: 6.0.853 / Virus Database: 581 - Release Date: 2/1/2005 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com) Version: 6.0.859 / Virus Database: 585 - Release Date: 2/14/2005 _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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Re: ContentHint Issue
by Michael Cashwell 23 Feb '05

23 Feb '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com <x-tad-bigger>Dear Cliff,</x-tad-bigger> <x-tad-bigger>I have tried all the steps told by you and when I say 'p' to print the partition table, it shows the output as</x-tad-bigger> <x-tad-bigger>Top level command (? for help): e /dev/rdisk2</x-tad-bigger> <x-tad-bigger>/dev/rdisk2</x-tad-bigger> <x-tad-bigger>Command (? for help): t</x-tad-bigger> <x-tad-bigger>Partition number: 3</x-tad-bigger> <x-tad-bigger>New partition type: MACOSX_MyContent</x-tad-bigger> <x-tad-bigger>Command (? for help): p</x-tad-bigger> <x-tad-bigger>/dev/rdisk2 map block size=512</x-tad-bigger> <x-tad-bigger> #: type name length base ( size )</x-tad-bigger> <x-tad-bigger> 1: Apple_partition_map Apple 63 @ 1 </x-tad-bigger> <x-tad-bigger> 2: Apple_Free 0+@ 64 </x-tad-bigger> <x-tad-bigger> 3: MACOSX_MyContent Apple_HFS_Untitled_2 16121776 @ 262208 ( 7.7G)</x-tad-bigger> <x-tad-bigger> 4: Apple_Free 0+@ 16383984</x-tad-bigger> <x-tad-bigger> </x-tad-bigger> <x-tad-bigger>Device block size=512, Number of Blocks=16384000</x-tad-bigger> <x-tad-bigger>DeviceType=0x0, DeviceId=0x0</x-tad-bigger> <x-tad-bigger>But again if I list the partition map using ‘L’ it shows following output:</x-tad-bigger> <x-tad-bigger>Top level command (? for help): L</x-tad-bigger> <x-tad-bigger>/dev/rdisk2 map block size=512</x-tad-bigger> <x-tad-bigger> #: type name length base ( size )</x-tad-bigger> <x-tad-bigger> 1: Apple_partition_map Apple 63 @ 1 </x-tad-bigger> <x-tad-bigger> 2: Apple_Free 0+@ 64 </x-tad-bigger> <x-tad-bigger> 3: Apple_HFS Apple_HFS_Untitled_2 16121776 @ 262208 ( 7.7G)</x-tad-bigger> <x-tad-bigger> 4: Apple_Free 0+@ 16383984</x-tad-bigger> <x-tad-bigger>Device block size=512, Number of Blocks=16384000</x-tad-bigger> <x-tad-bigger>DeviceType=0x0, DeviceId=0x0</x-tad-bigger> <x-tad-bigger>I think it only shows that partition type is changed but actually it does not set the partition type to new value.</x-tad-bigger>

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Re: ContentHint Issue
by Imran 23 Feb '05

23 Feb '05

site_archiver(a)lists.apple.com Delivered-To: darwin-kernel(a)lists.apple.com Thread-index: AcUZlbiPMSHLt3/oQd6sGOPXib9Yrg== _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.… This email sent to site_archiver(a)lists.apple.com

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