Emulating a WebCamera
in [Device Drivers]
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From: Gary G. Little on 13 Jan 2006 10:23 Last time I looked, for $100 you get the DDK suite, or something that included the actual DDK. By itself, the DDK was only the cost of shipping .... around $15 US. It is included in an MSDN subscription, which is an annual subscription. -- The personal opinion of Gary G. Little <ab> wrote in message news:%23NkCYAEGGHA.3444(a)TK2MSFTNGP10.phx.gbl... > Max was right, testcap is what you want, it is a virtual device like you > need, > displaying, instead of a real picture, a Test Screen of bars, so you don't > even need to program anything, just compile, and there you go! > Get the DDK, it's $100. Mind you Max was a bit optimistic I think with > his "few months" estimate, more likely "few years". Anyway, good luck! > > "pradeep_TP" <pradeepTP(a)discussions.microsoft.com> wrote in message > news:A64E1540-833B-4BF8-A71E-329DFD5D73DE(a)microsoft.com... >> Hello Mark, >> >> I am willing to spend even years, if I want to learn about device driver >> programming. The reason I am hanging around this forum is to get some >> idea >> about where and how to start and also the advices and suggestions from > people >> like you. >> >> My biggest problem now is the DDK, which I dont not have. Meanwhile I > would >> like to spend some time reading about driver development. Do you have any >> suggestions on any good books for the same? >> >> Thanks >> pradeep_TP >> >> "Max Paklin" wrote: >> >> > DDK's TestCap is probably the best starting point for your effort. >> > However I must point out that it is not a trivial task even for an >> > experienced dev. >> > Given the fact that you don't seem to know kernel - and KS in > particular - >> > at all, it'd be very hard for you to do this unless you are willing to > spend >> > months learning. >> > >> > -- Max. >> > >> > >> > >> > "pradeep_TP" <pradeepTP(a)discussions.microsoft.com> wrote in message >> > news:28AAE602-B635-4953-80BF-240AD847D102(a)microsoft.com... >> > > Hello all, >> > > >> > > ab, thanks for pointing me towards the DDK sample. Unfortunately, i > dont >> > > have the DDk with me. I know it is not freely downloadable, but is is >> > > possible that i can download just the samples from somewhere. >> > > >> > > cat, can i ask you how long have you worked on developing device > drivers. >> > > can you share your experience with me so that i can have some > inspiration. >> > > Did you work on device drivers individually or with a team. what are > the >> > > important things that i should keep in mind while starting to learn > about >> > > device drivers. >> > > >> > > Thanks >> > > pradeep >> > > >> > > >> > > "Cat" wrote: >> > > >> > >> Generally, I stay away from kernel-mode as much as possible, the > reason >> > >> being that crashes in kernel-mode are a lot more time-consuming to >> > >> debug than in usermode, where you can simply attach a debugger, >> > >> terminate the process, etc. >> > >> >> > >> That's why I was pointing toward a user-mode solution. If, however, > you >> > >> genuinely need the device to show up in Device Manager, etc., etc., >> > >> then indeed kernel-mode seems like the only solution. >> > >> >> > >> Good luck, >> > >> -Cat >> > >> >> > >> >> > >> > >> > > >
From: Gary G. Little on 13 Jan 2006 10:27 Your best bet is to start with the WDF, currently KMDF 1.0 (Kernel Mode Driver Framework). The framework provides much of the power and PnP management that has made drive developement so difficult. It stilll tain't easy, but the framework does make it easier. -- The personal opinion of Gary G. Little "pradeep_TP" <pradeepTP(a)discussions.microsoft.com> wrote in message news:A64E1540-833B-4BF8-A71E-329DFD5D73DE(a)microsoft.com... > Hello Mark, > > I am willing to spend even years, if I want to learn about device driver > programming. The reason I am hanging around this forum is to get some idea > about where and how to start and also the advices and suggestions from > people > like you. > > My biggest problem now is the DDK, which I dont not have. Meanwhile I > would > like to spend some time reading about driver development. Do you have any > suggestions on any good books for the same? > > Thanks > pradeep_TP > > "Max Paklin" wrote: > >> DDK's TestCap is probably the best starting point for your effort. >> However I must point out that it is not a trivial task even for an >> experienced dev. >> Given the fact that you don't seem to know kernel - and KS in >> particular - >> at all, it'd be very hard for you to do this unless you are willing to >> spend >> months learning. >> >> -- Max. >> >> >> >> "pradeep_TP" <pradeepTP(a)discussions.microsoft.com> wrote in message >> news:28AAE602-B635-4953-80BF-240AD847D102(a)microsoft.com... >> > Hello all, >> > >> > ab, thanks for pointing me towards the DDK sample. Unfortunately, i >> > dont >> > have the DDk with me. I know it is not freely downloadable, but is is >> > possible that i can download just the samples from somewhere. >> > >> > cat, can i ask you how long have you worked on developing device >> > drivers. >> > can you share your experience with me so that i can have some >> > inspiration. >> > Did you work on device drivers individually or with a team. what are >> > the >> > important things that i should keep in mind while starting to learn >> > about >> > device drivers. >> > >> > Thanks >> > pradeep >> > >> > >> > "Cat" wrote: >> > >> >> Generally, I stay away from kernel-mode as much as possible, the >> >> reason >> >> being that crashes in kernel-mode are a lot more time-consuming to >> >> debug than in usermode, where you can simply attach a debugger, >> >> terminate the process, etc. >> >> >> >> That's why I was pointing toward a user-mode solution. If, however, >> >> you >> >> genuinely need the device to show up in Device Manager, etc., etc., >> >> then indeed kernel-mode seems like the only solution. >> >> >> >> Good luck, >> >> -Cat >> >> >> >> >> >> >>
From: Anonymous on 13 Jan 2006 12:32 I am not sure, I once looked and it was "free" with a cost of $100 for post and "handling". Perhaps microsoft has realised it is absured to say something is free when the "administration fee" is 100, and if so this is a good thing. In the same way it is also absured to say the ddk is "free" with msdn, because msdn>>$100. I think you are quite rich, or ,maybe your company buys all the software for you, and there you live in a bubble. "Gary G. Little" <gary.g.little(a)seagate.com> wrote in message news:43c7c52d$0$2746$6d36acad(a)taz.nntpserver.com... > Last time I looked, for $100 you get the DDK suite, or something that > included the actual DDK. By itself, the DDK was only the cost of shipping > ... around $15 US. It is included in an MSDN subscription, which is an > annual subscription. > > -- > The personal opinion of > Gary G. Little > > <ab> wrote in message news:%23NkCYAEGGHA.3444(a)TK2MSFTNGP10.phx.gbl... > > Max was right, testcap is what you want, it is a virtual device like you > > need, > > displaying, instead of a real picture, a Test Screen of bars, so you don't > > even need to program anything, just compile, and there you go! > > Get the DDK, it's $100. Mind you Max was a bit optimistic I think with > > his "few months" estimate, more likely "few years". Anyway, good luck! > > > > "pradeep_TP" <pradeepTP(a)discussions.microsoft.com> wrote in message > > news:A64E1540-833B-4BF8-A71E-329DFD5D73DE(a)microsoft.com... > >> Hello Mark, > >> > >> I am willing to spend even years, if I want to learn about device driver > >> programming. The reason I am hanging around this forum is to get some > >> idea > >> about where and how to start and also the advices and suggestions from > > people > >> like you. > >> > >> My biggest problem now is the DDK, which I dont not have. Meanwhile I > > would > >> like to spend some time reading about driver development. Do you have any > >> suggestions on any good books for the same? > >> > >> Thanks > >> pradeep_TP > >> > >> "Max Paklin" wrote: > >> > >> > DDK's TestCap is probably the best starting point for your effort. > >> > However I must point out that it is not a trivial task even for an > >> > experienced dev. > >> > Given the fact that you don't seem to know kernel - and KS in > > particular - > >> > at all, it'd be very hard for you to do this unless you are willing to > > spend > >> > months learning. > >> > > >> > -- Max. > >> > > >> > > >> > > >> > "pradeep_TP" <pradeepTP(a)discussions.microsoft.com> wrote in message > >> > news:28AAE602-B635-4953-80BF-240AD847D102(a)microsoft.com... > >> > > Hello all, > >> > > > >> > > ab, thanks for pointing me towards the DDK sample. Unfortunately, i > > dont > >> > > have the DDk with me. I know it is not freely downloadable, but is is > >> > > possible that i can download just the samples from somewhere. > >> > > > >> > > cat, can i ask you how long have you worked on developing device > > drivers. > >> > > can you share your experience with me so that i can have some > > inspiration. > >> > > Did you work on device drivers individually or with a team. what are > > the > >> > > important things that i should keep in mind while starting to learn > > about > >> > > device drivers. > >> > > > >> > > Thanks > >> > > pradeep > >> > > > >> > > > >> > > "Cat" wrote: > >> > > > >> > >> Generally, I stay away from kernel-mode as much as possible, the > > reason > >> > >> being that crashes in kernel-mode are a lot more time-consuming to > >> > >> debug than in usermode, where you can simply attach a debugger, > >> > >> terminate the process, etc. > >> > >> > >> > >> That's why I was pointing toward a user-mode solution. If, however, > > you > >> > >> genuinely need the device to show up in Device Manager, etc., etc., > >> > >> then indeed kernel-mode seems like the only solution. > >> > >> > >> > >> Good luck, > >> > >> -Cat > >> > >> > >> > >> > >> > > >> > > >> > > > > > > >
From: Gary G. Little on 13 Jan 2006 15:22 For sure you misread it. The item is free, but you will pay to have them send it to you. Or you could always travel to the distribution center and pick it up in person. Sending it to you is a courtesy, and at your cost. -- The personal opinion of Gary G. Little <ab> wrote in message news:OqQ7tdGGGHA.3000(a)TK2MSFTNGP14.phx.gbl... >I am not sure, I once looked and it was "free" with a cost of $100 for > post and "handling". Perhaps microsoft has realised it is absured to > say something is free when the "administration fee" is 100, and if so > this is a good thing. In the same way it is also absured to say the > ddk is "free" with msdn, because msdn>>$100. I think you are quite > rich, or ,maybe your company buys all the software for you, and > there you live in a bubble. > "Gary G. Little" <gary.g.little(a)seagate.com> wrote in message > news:43c7c52d$0$2746$6d36acad(a)taz.nntpserver.com... >> Last time I looked, for $100 you get the DDK suite, or something that >> included the actual DDK. By itself, the DDK was only the cost of shipping >> ... around $15 US. It is included in an MSDN subscription, which is an >> annual subscription. >> >> -- >> The personal opinion of >> Gary G. Little >> >> <ab> wrote in message news:%23NkCYAEGGHA.3444(a)TK2MSFTNGP10.phx.gbl... >> > Max was right, testcap is what you want, it is a virtual device like >> > you >> > need, >> > displaying, instead of a real picture, a Test Screen of bars, so you > don't >> > even need to program anything, just compile, and there you go! >> > Get the DDK, it's $100. Mind you Max was a bit optimistic I think with >> > his "few months" estimate, more likely "few years". Anyway, good luck! >> > >> > "pradeep_TP" <pradeepTP(a)discussions.microsoft.com> wrote in message >> > news:A64E1540-833B-4BF8-A71E-329DFD5D73DE(a)microsoft.com... >> >> Hello Mark, >> >> >> >> I am willing to spend even years, if I want to learn about device > driver >> >> programming. The reason I am hanging around this forum is to get some >> >> idea >> >> about where and how to start and also the advices and suggestions from >> > people >> >> like you. >> >> >> >> My biggest problem now is the DDK, which I dont not have. Meanwhile I >> > would >> >> like to spend some time reading about driver development. Do you have > any >> >> suggestions on any good books for the same? >> >> >> >> Thanks >> >> pradeep_TP >> >> >> >> "Max Paklin" wrote: >> >> >> >> > DDK's TestCap is probably the best starting point for your effort. >> >> > However I must point out that it is not a trivial task even for an >> >> > experienced dev. >> >> > Given the fact that you don't seem to know kernel - and KS in >> > particular - >> >> > at all, it'd be very hard for you to do this unless you are willing > to >> > spend >> >> > months learning. >> >> > >> >> > -- Max. >> >> > >> >> > >> >> > >> >> > "pradeep_TP" <pradeepTP(a)discussions.microsoft.com> wrote in message >> >> > news:28AAE602-B635-4953-80BF-240AD847D102(a)microsoft.com... >> >> > > Hello all, >> >> > > >> >> > > ab, thanks for pointing me towards the DDK sample. Unfortunately, >> >> > > i >> > dont >> >> > > have the DDk with me. I know it is not freely downloadable, but is > is >> >> > > possible that i can download just the samples from somewhere. >> >> > > >> >> > > cat, can i ask you how long have you worked on developing device >> > drivers. >> >> > > can you share your experience with me so that i can have some >> > inspiration. >> >> > > Did you work on device drivers individually or with a team. what > are >> > the >> >> > > important things that i should keep in mind while starting to >> >> > > learn >> > about >> >> > > device drivers. >> >> > > >> >> > > Thanks >> >> > > pradeep >> >> > > >> >> > > >> >> > > "Cat" wrote: >> >> > > >> >> > >> Generally, I stay away from kernel-mode as much as possible, the >> > reason >> >> > >> being that crashes in kernel-mode are a lot more time-consuming >> >> > >> to >> >> > >> debug than in usermode, where you can simply attach a debugger, >> >> > >> terminate the process, etc. >> >> > >> >> >> > >> That's why I was pointing toward a user-mode solution. If, > however, >> > you >> >> > >> genuinely need the device to show up in Device Manager, etc., > etc., >> >> > >> then indeed kernel-mode seems like the only solution. >> >> > >> >> >> > >> Good luck, >> >> > >> -Cat >> >> > >> >> >> > >> >> >> > >> >> > >> >> > >> > >> > >> >> > >
From: Gary G. Little on 13 Jan 2006 15:38
But this a moot point as http://www.microsoft.com/whdc/driver/wdf/KMDF_pkg.mspx has a downloadable ISO image of KMDF 1.0 which has the DDK install package for the current DDK. The S&H cost of the DDK has never been $100, unless you live in the deepest and darkest part of Antartica and you have to pay for feeding the sled dogs to get it to your igloo. The $100 cost was for the DDK Suite which contained the DDK and provided miscelaneous flotsam and jetsam you might or might not find useful. My company pays for my work Universal MSDN subscription, but I pay for my own MSDN subscription, out of pocket, so that I have a home environment. That has come in very handy a few times during layoffs when I did not have access to "company supplied" tools. It's the cost of doing business, whether it be S & H for the DDK or an MSDN subscription, and if you can't afford it, tough, perhaps you need to find a career you can afford. -- The personal opinion of Gary G. Little <ab> wrote in message news:OqQ7tdGGGHA.3000(a)TK2MSFTNGP14.phx.gbl... >I am not sure, I once looked and it was "free" with a cost of $100 for > post and "handling". Perhaps microsoft has realised it is absured to > say something is free when the "administration fee" is 100, and if so > this is a good thing. In the same way it is also absured to say the > ddk is "free" with msdn, because msdn>>$100. I think you are quite > rich, or ,maybe your company buys all the software for you, and > there you live in a bubble. > "Gary G. Little" <gary.g.little(a)seagate.com> wrote in message > news:43c7c52d$0$2746$6d36acad(a)taz.nntpserver.com... >> Last time I looked, for $100 you get the DDK suite, or something that >> included the actual DDK. By itself, the DDK was only the cost of shipping >> ... around $15 US. It is included in an MSDN subscription, which is an >> annual subscription. >> >> -- >> The personal opinion of >> Gary G. Little >> >> <ab> wrote in message news:%23NkCYAEGGHA.3444(a)TK2MSFTNGP10.phx.gbl... >> > Max was right, testcap is what you want, it is a virtual device like >> > you >> > need, >> > displaying, instead of a real picture, a Test Screen of bars, so you > don't >> > even need to program anything, just compile, and there you go! >> > Get the DDK, it's $100. Mind you Max was a bit optimistic I think with >> > his "few months" estimate, more likely "few years". Anyway, good luck! >> > >> > "pradeep_TP" <pradeepTP(a)discussions.microsoft.com> wrote in message >> > news:A64E1540-833B-4BF8-A71E-329DFD5D73DE(a)microsoft.com... >> >> Hello Mark, >> >> >> >> I am willing to spend even years, if I want to learn about device > driver >> >> programming. The reason I am hanging around this forum is to get some >> >> idea >> >> about where and how to start and also the advices and suggestions from >> > people >> >> like you. >> >> >> >> My biggest problem now is the DDK, which I dont not have. Meanwhile I >> > would >> >> like to spend some time reading about driver development. Do you have > any >> >> suggestions on any good books for the same? >> >> >> >> Thanks >> >> pradeep_TP >> >> >> >> "Max Paklin" wrote: >> >> >> >> > DDK's TestCap is probably the best starting point for your effort. >> >> > However I must point out that it is not a trivial task even for an >> >> > experienced dev. >> >> > Given the fact that you don't seem to know kernel - and KS in >> > particular - >> >> > at all, it'd be very hard for you to do this unless you are willing > to >> > spend >> >> > months learning. >> >> > >> >> > -- Max. >> >> > >> >> > >> >> > >> >> > "pradeep_TP" <pradeepTP(a)discussions.microsoft.com> wrote in message >> >> > news:28AAE602-B635-4953-80BF-240AD847D102(a)microsoft.com... >> >> > > Hello all, >> >> > > >> >> > > ab, thanks for pointing me towards the DDK sample. Unfortunately, >> >> > > i >> > dont >> >> > > have the DDk with me. I know it is not freely downloadable, but is > is >> >> > > possible that i can download just the samples from somewhere. >> >> > > >> >> > > cat, can i ask you how long have you worked on developing device >> > drivers. >> >> > > can you share your experience with me so that i can have some >> > inspiration. >> >> > > Did you work on device drivers individually or with a team. what > are >> > the >> >> > > important things that i should keep in mind while starting to >> >> > > learn >> > about >> >> > > device drivers. >> >> > > >> >> > > Thanks >> >> > > pradeep >> >> > > >> >> > > >> >> > > "Cat" wrote: >> >> > > >> >> > >> Generally, I stay away from kernel-mode as much as possible, the >> > reason >> >> > >> being that crashes in kernel-mode are a lot more time-consuming >> >> > >> to >> >> > >> debug than in usermode, where you can simply attach a debugger, >> >> > >> terminate the process, etc. >> >> > >> >> >> > >> That's why I was pointing toward a user-mode solution. If, > however, >> > you >> >> > >> genuinely need the device to show up in Device Manager, etc., > etc., >> >> > >> then indeed kernel-mode seems like the only solution. >> >> > >> >> >> > >> Good luck, >> >> > >> -Cat >> >> > >> >> >> > >> >> >> > >> >> > >> >> > >> > >> > >> >> > > |