January 2008 - Darwin-dev - lists.apple.com

Re: DKIOCCDREADTOC returning BCD numbers?
by Chris Sarcone 04 Jan '08

04 Jan '08

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Re: Building kext for Leopard and Tiger
by Duane Murphy 04 Jan '08

04 Jan '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com --- At Fri, 4 Jan 2008 15:25:08 +0530, nandan.nivgune wrote: >Hi, > Can you provide some detail information about the IOKit- >Family in which you >Found change in interface and what type of driver you want to port? The interface that I am interested in overriding is the requestProbe function on the IOPartition(*)PartitionScheme IOStorage classes. More testing has shown (so far) that IOUserClient has changed between Tiger and Leopard. kextload indicates that this change is not backwards compatible. However, the change to IOUserClient is not required for my kext. So I actually have a more complicated situation. I would like to have a kext that works on both Leopard and Tiger, with some of the kext classes compiled with Leopard interfaces and some compiled with Tiger interfaces. I'm not sure how to go about combining two targets into one kext. I have not done enough testing yet, but I am hopeful that the requestProbe interface is backwards compatible because it does not use one of the reserved virtual function locations. ...Duane _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… This email sent to site_archiver(a)lists.apple.com

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Re:Building kext for Leopard and Tiger
by nandan.nivgune 04 Jan '08

04 Jan '08

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Re: How can I get the maximum shared memory segment size in program?
by bady yu 04 Jan '08

04 Jan '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com Dkim-signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:cc:message-id:from:to:in-reply-to:content-type:content-transfer-encoding:mime-version:subject:date:references:x-mailer; bh=T/xkA6oC2YqdsjuX3w4QESzG0coFSdS4FOTnjf8+BdQ=; b=dJ5Bnoi/2HS6+gN7bZgR9/7Yeqtip4zBozgIaUvynZxOsmbFOzIbddG2eOzm1wjIwE0vydLviiAQnY/LjTjnl3WuMIq8zgOkTezGJGp2qLlWpKBFI3iL1CGdpB4zrcGtoqHySnd3F3piGN7UO8ANcLZBRDC70u5Ev0CoNHj04rc= Domainkey-signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=cc:message-id:from:to:in-reply-to:content-type:content-transfer-encoding:mime-version:subject:date:references:x-mailer; b=uGFsEXsSTRa/2I5E+FAGIJwWAdDTdjj0Tnr9gHC5qXjguopR3ruD3P3ss9dM6CseIsiqI9AtmDR4zQM+NuYP3+2YZaZ9ilTgID2gkeSoDTfSO3eUNywrWUYuVbxduBcFCvO6pcD7eaJwWBgfaOKbYvIv5KxHtRdhvNjVowIVBaQ= Terry, You are right. On Dec 31, 2007, at 4:38 AM, Terry Lambert wrote: -- Terry By the way, my system is Leopard. _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… In my original codes, I declared shmmax variable as long. And sysctlbyname can't return the correct value. After I changed shmmax to long long. sysctlbyname return the exact value as sysctl command. Then my question is how can I know the exact type of each return value for kinds of keys? Although I can know some information from "man 8 sysctl", I don't know the exact type of the integer/string/struct, like whether integer is long long , long or something else. You did not provie the types of len or shmmax, nor whether or not len contains sizeof(shmmax), nor whether you are calling this from a 32 or 64 bit program. But I suspect you are passing the wrong type and size in to the sysctlbyname() call. On Dec 28, 2007, at 9:34 PM, bady yu <bady.yu(a)gmail.com> wrote: I can use "sysctl kern.sysv.shmmax" or "ipcs -M" to get the integer(4194304). But they are both command line tools. It is not convenient to call it inside the problem. I also have tried to use the sysctlbyname system call: sysctlbyname("kern.sysv.shmmax", &shmmax, &len, NULL, NULL). Although this call return 0, the shmmax variable does not hold the correct value. Can anybody tell me an appropriate way? Thank you in advance! _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/tlambert %40apple.com This email sent to tlambert(a)apple.com This email sent to site_archiver(a)lists.apple.com

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Re: calling sysctl at startup - how?
by Terry Lambert 04 Jan '08

04 Jan '08

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RE: calling sysctl at startup - how?
by Norm Green 04 Jan '08

04 Jan '08

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Re: calling sysctl at startup - how?
by Dave Zarzycki 04 Jan '08

04 Jan '08

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Re: calling sysctl at startup - how?
by Terry Lambert 04 Jan '08

04 Jan '08

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DKIOCCDREADTOC returning BCD numbers?
by Stephen F. Booth 04 Jan '08

04 Jan '08

site_archiver(a)lists.apple.com Delivered-To: darwin-dev(a)lists.apple.com dk_cd_read_toc_t cd_read_toc; uint8_t buffer [2048]; bzero(&cd_read_toc, sizeof(cd_read_toc)); bzero(buffer, sizeof(buffer)); cd_read_toc.format = kCDTOCFormatTOC; cd_read_toc.buffer = buffer; cd_read_toc.bufferLength = sizeof(buffer); result = ioctl([self fileDescriptor], DKIOCCDREADTOC, &cd_read_toc); External Plextor: 2008-01-03 20:40:29.544 Max[3025:10b] TOC parsing complete 2008-01-03 20:40:29.545 Max[3025:10b] ==================== 2008-01-03 20:40:29.546 Max[3025:10b] First session : 1 2008-01-03 20:40:29.547 Max[3025:10b] Last session : 1 2008-01-03 20:40:29.548 Max[3025:10b] Session number : 1 2008-01-03 20:40:29.548 Max[3025:10b] First track : 1 2008-01-03 20:40:29.549 Max[3025:10b] Last track : 38 2008-01-03 20:40:29.550 Max[3025:10b] Lead out : 519112 2008-01-03 20:40:29.550 Max[3025:10b] Track number 1 2008-01-03 20:40:29.551 Max[3025:10b] First sector : 51 2008-01-03 20:40:29.551 Max[3025:10b] Track number 2 2008-01-03 20:40:29.552 Max[3025:10b] First sector : 91133 2008-01-03 20:40:29.552 Max[3025:10b] Track number 3 2008-01-03 20:40:29.553 Max[3025:10b] First sector : 111482 2008-01-03 20:40:29.555 Max[3025:10b] Track number 4 2008-01-03 20:40:29.555 Max[3025:10b] First sector : 185858 2008-01-03 20:40:29.556 Max[3025:10b] Track number 5 2008-01-03 20:40:29.556 Max[3025:10b] First sector : 221062 2008-01-03 20:40:29.557 Max[3025:10b] Track number 6 2008-01-03 20:40:29.558 Max[3025:10b] First sector : 225426 2008-01-03 20:40:29.559 Max[3025:10b] Track number 7 2008-01-03 20:40:29.559 Max[3025:10b] First sector : 226433 2008-01-03 20:40:29.560 Max[3025:10b] Track number 8 2008-01-03 20:40:29.560 Max[3025:10b] First sector : 229476 2008-01-03 20:40:29.561 Max[3025:10b] Track number 9 2008-01-03 20:40:29.561 Max[3025:10b] First sector : 235476 2008-01-03 20:40:29.562 Max[3025:10b] Track number 10 2008-01-03 20:40:29.562 Max[3025:10b] First sector : 0 2008-01-03 20:40:29.562 Max[3025:10b] Track number 11 2008-01-03 20:40:29.563 Max[3025:10b] First sector : 0 2008-01-03 20:40:29.563 Max[3025:10b] Track number 12 2008-01-03 20:40:29.563 Max[3025:10b] First sector : 0 2008-01-03 20:40:29.564 Max[3025:10b] Track number 13 2008-01-03 20:40:29.564 Max[3025:10b] First sector : 0 2008-01-03 20:40:29.565 Max[3025:10b] Track number 14 2008-01-03 20:40:29.565 Max[3025:10b] First sector : 0 2008-01-03 20:40:29.566 Max[3025:10b] Track number 15 2008-01-03 20:40:29.566 Max[3025:10b] First sector : 0 2008-01-03 20:40:29.566 Max[3025:10b] Track number 16 2008-01-03 20:40:29.567 Max[3025:10b] First sector : 238551 2008-01-03 20:40:29.567 Max[3025:10b] Track number 17 2008-01-03 20:40:29.568 Max[3025:10b] First sector : 252351 2008-01-03 20:40:29.568 Max[3025:10b] Track number 18 2008-01-03 20:40:29.569 Max[3025:10b] First sector : 255876 2008-01-03 20:40:29.569 Max[3025:10b] Track number 19 2008-01-03 20:40:29.569 Max[3025:10b] First sector : 257826 2008-01-03 20:40:29.570 Max[3025:10b] Track number 20 2008-01-03 20:40:29.570 Max[3025:10b] First sector : 292749 2008-01-03 20:40:29.571 Max[3025:10b] Track number 21 2008-01-03 20:40:29.571 Max[3025:10b] First sector : 298626 2008-01-03 20:40:29.571 Max[3025:10b] Track number 22 2008-01-03 20:40:29.572 Max[3025:10b] First sector : 307813 2008-01-03 20:40:29.572 Max[3025:10b] Track number 23 2008-01-03 20:40:29.573 Max[3025:10b] First sector : 315158 2008-01-03 20:40:29.573 Max[3025:10b] Track number 24 2008-01-03 20:40:29.574 Max[3025:10b] First sector : 324487 2008-01-03 20:40:29.574 Max[3025:10b] Track number 25 2008-01-03 20:40:29.575 Max[3025:10b] First sector : 331401 2008-01-03 20:40:29.575 Max[3025:10b] Track number 26 2008-01-03 20:40:29.575 Max[3025:10b] First sector : 0 2008-01-03 20:40:29.576 Max[3025:10b] Track number 27 2008-01-03 20:40:29.576 Max[3025:10b] First sector : 0 2008-01-03 20:40:29.578 Max[3025:10b] Track number 28 2008-01-03 20:40:29.579 Max[3025:10b] First sector : 0 2008-01-03 20:40:29.579 Max[3025:10b] Track number 29 2008-01-03 20:40:29.591 Max[3025:10b] First sector : 0 2008-01-03 20:40:29.592 Max[3025:10b] Track number 30 2008-01-03 20:40:29.592 Max[3025:10b] First sector : 0 2008-01-03 20:40:29.592 Max[3025:10b] Track number 31 2008-01-03 20:40:29.593 Max[3025:10b] First sector : 0 2008-01-03 20:40:29.593 Max[3025:10b] Track number 32 2008-01-03 20:40:29.593 Max[3025:10b] First sector : 369233 2008-01-03 20:40:29.594 Max[3025:10b] Track number 33 2008-01-03 20:40:29.594 Max[3025:10b] First sector : 378426 2008-01-03 20:40:29.594 Max[3025:10b] Track number 34 2008-01-03 20:40:29.595 Max[3025:10b] First sector : 383113 2008-01-03 20:40:29.595 Max[3025:10b] Track number 35 2008-01-03 20:40:29.595 Max[3025:10b] First sector : 391701 2008-01-03 20:40:29.596 Max[3025:10b] Track number 36 2008-01-03 20:40:29.596 Max[3025:10b] First sector : 433508 2008-01-03 20:40:29.597 Max[3025:10b] Track number 37 2008-01-03 20:40:29.597 Max[3025:10b] First sector : 445851 2008-01-03 20:40:29.597 Max[3025:10b] Track number 38 2008-01-03 20:40:29.611 Max[3025:10b] First sector : 459051 --------------------------------------------------------------------------------------------------------------------------------------------------------- Internal Drive: 2008-01-03 20:43:03.275 Max[3042:10b] TOC parsing complete 2008-01-03 20:43:03.277 Max[3042:10b] ==================== 2008-01-03 20:43:03.277 Max[3042:10b] First session : 1 2008-01-03 20:43:03.278 Max[3042:10b] Last session : 1 2008-01-03 20:43:03.278 Max[3042:10b] Session number : 1 2008-01-03 20:43:03.278 Max[3042:10b] First track : 1 2008-01-03 20:43:03.279 Max[3042:10b] Last track : 26 2008-01-03 20:43:03.279 Max[3042:10b] Lead out : 327820 2008-01-03 20:43:03.279 Max[3042:10b] Track number 1 2008-01-03 20:43:03.281 Max[3042:10b] First sector : 33 2008-01-03 20:43:03.281 Max[3042:10b] Track number 2 2008-01-03 20:43:03.282 Max[3042:10b] First sector : 63683 2008-01-03 20:43:03.282 Max[3042:10b] Track number 3 2008-01-03 20:43:03.282 Max[3042:10b] First sector : 83120 2008-01-03 20:43:03.283 Max[3042:10b] Track number 4 2008-01-03 20:43:03.283 Max[3042:10b] First sector : 131408 2008-01-03 20:43:03.284 Max[3042:10b] Track number 5 2008-01-03 20:43:03.284 Max[3042:10b] First sector : 138220 2008-01-03 20:43:03.284 Max[3042:10b] Track number 6 2008-01-03 20:43:03.285 Max[3042:10b] First sector : 142608 2008-01-03 20:43:03.285 Max[3042:10b] Track number 7 2008-01-03 20:43:03.286 Max[3042:10b] First sector : 144983 2008-01-03 20:43:03.286 Max[3042:10b] Track number 8 2008-01-03 20:43:03.286 Max[3042:10b] First sector : 148458 2008-01-03 20:43:03.287 Max[3042:10b] Track number 9 2008-01-03 20:43:03.287 Max[3042:10b] First sector : 154008 2008-01-03 20:43:03.287 Max[3042:10b] Track number 10 2008-01-03 20:43:03.288 Max[3042:10b] First sector : 157533 2008-01-03 20:43:03.288 Max[3042:10b] Track number 11 2008-01-03 20:43:03.289 Max[3042:10b] First sector : 169533 2008-01-03 20:43:03.289 Max[3042:10b] Track number 12 2008-01-03 20:43:03.289 Max[3042:10b] First sector : 173508 2008-01-03 20:43:03.293 Max[3042:10b] Track number 13 2008-01-03 20:43:03.294 Max[3042:10b] First sector : 176358 2008-01-03 20:43:03.295 Max[3042:10b] Track number 14 2008-01-03 20:43:03.295 Max[3042:10b] First sector : 182943 2008-01-03 20:43:03.295 Max[3042:10b] Track number 15 2008-01-03 20:43:03.296 Max[3042:10b] First sector : 190158 2008-01-03 20:43:03.296 Max[3042:10b] Track number 16 2008-01-03 20:43:03.298 Max[3042:10b] First sector : 197533 2008-01-03 20:43:03.299 Max[3042:10b] Track number 17 2008-01-03 20:43:03.299 Max[3042:10b] First sector : 207158 2008-01-03 20:43:03.300 Max[3042:10b] Track number 18 2008-01-03 20:43:03.300 Max[3042:10b] First sector : 216445 2008-01-03 20:43:03.301 Max[3042:10b] Track number 19 2008-01-03 20:43:03.302 Max[3042:10b] First sector : 222483 2008-01-03 20:43:03.303 Max[3042:10b] Track number 20 2008-01-03 20:43:03.303 Max[3042:10b] First sector : 232433 2008-01-03 20:43:03.303 Max[3042:10b] Track number 21 2008-01-03 20:43:03.304 Max[3042:10b] First sector : 243408 2008-01-03 20:43:03.304 Max[3042:10b] Track number 22 2008-01-03 20:43:03.305 Max[3042:10b] First sector : 248083 2008-01-03 20:43:03.305 Max[3042:10b] Track number 23 2008-01-03 20:43:03.306 Max[3042:10b] First sector : 256683 2008-01-03 20:43:03.306 Max[3042:10b] Track number 24 2008-01-03 20:43:03.307 Max[3042:10b] First sector : 271058 2008-01-03 20:43:03.307 Max[3042:10b] Track number 25 2008-01-03 20:43:03.307 Max[3042:10b] First sector : 282033 2008-01-03 20:43:03.308 Max[3042:10b] Track number 26 2008-01-03 20:43:03.308 Max[3042:10b] First sector : 297033 There is a comment in IOCDTypes.h which says: /* * Table Of Contents * * All CDTOC fields passed across I/O Kit APIs are guaranteed to be * binary-encoded numbers (no BCD-encoded numbers are ever passed). */ Thanks, Stephen _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev(a)lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.app… One of my users reported a bug when accessing some of his CDs from an external CD drive. After some debugging, it appears to me that the CDTOC returned from the external drive contains BCD-encoded numbers. My code which reads the TOC looks like: I inserted some debugging statements to print out the result. For the same disc, here is what the user saw in each of his drives: So indeed it appears that his external Plextor drive is returning a CDTOC with BCD-encoded numbers, because Internal last track: 26 (which is correct) External last track: 38, 0010 0110 in binary, when interpreted as BCD equals 26 in decimal Internal LBA for track 1: 33 (correct) External LBA for track 1: 51, 0011 0011 in binary, when interpreted as BCD equals 33 so I assumed I didn't have to convert from BCD. Have I made an error in my code or should this not be happening? This email sent to site_archiver(a)lists.apple.com

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calling sysctl at startup - how?
by Norm Green 04 Jan '08

04 Jan '08

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

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