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#1
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USB complains about not being high speed.
I have an ipod that I reformat and reset to factory. (Because I was
getting a message that the hard drive was corrupted and I needed to format it) It still doesn't seem to be working. It gives a message that I should use Itunes to fix it. When I first plugged the (reformatted) Ipod into the machine I got a message from the device manager that I was trying to use a high speed port. I am pretty sure the mobo I have does have all USB 2 ports. At the time, I also had a PCI USB card installed that was supposed to also have two USB 2 ports. I have unplugged the card to try to narrow down the problem. Anyway, when the computer complained about not being plugged into a high speed port, it gave me a list of USB ports I should select. Since I have no idea what USB port was what I just closed that screen. After taking out the USB expansion card, I rebooted the machine with the Ipod plugged in. The computer booted fine, but when I tried to load Itunes, nothing happened. I tried to load it again and nothing happened. I unplugged the Ipod and Itunes loaded. I am thinking that I should just delete the USB drivers from the device manager and let XP just reload the one it needs without the extra USB card. Yes? No? What is next? |
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#2
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USB complains about not being high speed.
Metspitzer wrote:
I have an ipod that I reformat and reset to factory. (Because I was getting a message that the hard drive was corrupted and I needed to format it) It still doesn't seem to be working. It gives a message that I should use Itunes to fix it. When I first plugged the (reformatted) Ipod into the machine I got a message from the device manager that I was trying to use a high speed port. I am pretty sure the mobo I have does have all USB 2 ports. At the time, I also had a PCI USB card installed that was supposed to also have two USB 2 ports. I have unplugged the card to try to narrow down the problem. Anyway, when the computer complained about not being plugged into a high speed port, it gave me a list of USB ports I should select. Since I have no idea what USB port was what I just closed that screen. After taking out the USB expansion card, I rebooted the machine with the Ipod plugged in. The computer booted fine, but when I tried to load Itunes, nothing happened. I tried to load it again and nothing happened. I unplugged the Ipod and Itunes loaded. I am thinking that I should just delete the USB drivers from the device manager and let XP just reload the one it needs without the extra USB card. Yes? No? What is next? Have you tested with a regular USB2 peripheral ? I can check here, with a USB2 flash key. I can insert that and do a HDTune read benchmark. If the rate is greater than about 1 MB/sec, then it pretty well has to be running USB2 mode. Like, I have a crappy flash key that does 4MB/sec and a good flash key that does 35MB/sec over USB2, and in both cases, those numbers are better than the practical transfer rate of 1 MB/sec you get from USB 1.1 . My guess would be, it's something to do with the iPod (or the cable). But perhaps you should be searching iPod symptoms, to see what happens to an SOC when it fails. (SOC being System On A Chip that mobile devices tend to use now.) I would not be so quick to blame the computer, when the iPod is already telling you it is not happy. The purpose of testing with a regular USB2 peripheral, is so we can pin the blame on the computer. If the computer passes the test, and does a fast transfer, then the iPod isn't looking so good. Transfer speed, as far as I know, is not recorded in the registry. It is negotiated each time a device is plugged in. Some devices can work with either negotiated 1.1 or 2.0 mode. A few, the tech docs claim the devices only work in USB2 mode. Which I find far fetched, as I always thought a USB2 peripheral had to support both modes. Paul |
#3
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USB complains about not being high speed.
On Tue, 18 Jun 2013 21:48:13 -0400, Paul wrote:
Metspitzer wrote: I have an ipod that I reformat and reset to factory. (Because I was getting a message that the hard drive was corrupted and I needed to format it) It still doesn't seem to be working. It gives a message that I should use Itunes to fix it. When I first plugged the (reformatted) Ipod into the machine I got a message from the device manager that I was trying to use a high speed port. I am pretty sure the mobo I have does have all USB 2 ports. At the time, I also had a PCI USB card installed that was supposed to also have two USB 2 ports. I have unplugged the card to try to narrow down the problem. Anyway, when the computer complained about not being plugged into a high speed port, it gave me a list of USB ports I should select. Since I have no idea what USB port was what I just closed that screen. After taking out the USB expansion card, I rebooted the machine with the Ipod plugged in. The computer booted fine, but when I tried to load Itunes, nothing happened. I tried to load it again and nothing happened. I unplugged the Ipod and Itunes loaded. I am thinking that I should just delete the USB drivers from the device manager and let XP just reload the one it needs without the extra USB card. Yes? No? What is next? Have you tested with a regular USB2 peripheral ? I can check here, with a USB2 flash key. I can insert that and do a HDTune read benchmark. If the rate is greater than about 1 MB/sec, then it pretty well has to be running USB2 mode. Like, I have a crappy flash key that does 4MB/sec and a good flash key that does 35MB/sec over USB2, and in both cases, those numbers are better than the practical transfer rate of 1 MB/sec you get from USB 1.1 . My guess would be, it's something to do with the iPod (or the cable). But perhaps you should be searching iPod symptoms, to see what happens to an SOC when it fails. (SOC being System On A Chip that mobile devices tend to use now.) I would not be so quick to blame the computer, when the iPod is already telling you it is not happy. The purpose of testing with a regular USB2 peripheral, is so we can pin the blame on the computer. If the computer passes the test, and does a fast transfer, then the iPod isn't looking so good. Transfer speed, as far as I know, is not recorded in the registry. It is negotiated each time a device is plugged in. Some devices can work with either negotiated 1.1 or 2.0 mode. A few, the tech docs claim the devices only work in USB2 mode. Which I find far fetched, as I always thought a USB2 peripheral had to support both modes. Paul I will give it a check next time I am in the mood to try to mess with it. Thanks |
#4
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USB complains about not being high speed.
On Tue, 18 Jun 2013 19:41:21 -0400, Metspitzer
wrote: I have an ipod that I reformat and reset to factory. (Because I was getting a message that the hard drive was corrupted and I needed to format it) It still doesn't seem to be working. It gives a message that I should use Itunes to fix it. When I first plugged the (reformatted) Ipod into the machine I got a message from the device manager that I was trying to use a high speed port. I am pretty sure the mobo I have does have all USB 2 ports. At the time, I also had a PCI USB card installed that was supposed to also have two USB 2 ports. I have unplugged the card to try to narrow down the problem. Anyway, when the computer complained about not being plugged into a high speed port, it gave me a list of USB ports I should select. Since I have no idea what USB port was what I just closed that screen. After taking out the USB expansion card, I rebooted the machine with the Ipod plugged in. The computer booted fine, but when I tried to load Itunes, nothing happened. I tried to load it again and nothing happened. I unplugged the Ipod and Itunes loaded. I am thinking that I should just delete the USB drivers from the device manager and let XP just reload the one it needs without the extra USB card. Yes? No? What is next? http://imgur.com/NT93Ryc I forgot I took a screenshot of this. When you get a message like this or when you see the USB list in the device manager, just how are you supposed to know what port any of them are? |
#5
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USB complains about not being high speed.
On Tue, 18 Jun 2013 19:41:21 -0400, Metspitzer
wrote: I have an ipod that I reformat and reset to factory. (Because I was getting a message that the hard drive was corrupted and I needed to format it) It still doesn't seem to be working. It gives a message that I should use Itunes to fix it. When I first plugged the (reformatted) Ipod into the machine I got a message from the device manager that I was trying to use a high speed port. I am pretty sure the mobo I have does have all USB 2 ports. At the time, I also had a PCI USB card installed that was supposed to also have two USB 2 ports. I have unplugged the card to try to narrow down the problem. Anyway, when the computer complained about not being plugged into a high speed port, it gave me a list of USB ports I should select. Since I have no idea what USB port was what I just closed that screen. After taking out the USB expansion card, I rebooted the machine with the Ipod plugged in. The computer booted fine, but when I tried to load Itunes, nothing happened. I tried to load it again and nothing happened. I unplugged the Ipod and Itunes loaded. I am thinking that I should just delete the USB drivers from the device manager and let XP just reload the one it needs without the extra USB card. Yes? No? What is next? I just looked at the mobo manual and I have 3 pairs of USB ports. Each has the exact same label. It says these two USB devices are for USB 2 devices. One USB pair is colored red, but I am assuming that the red color doesn't have anything to do with the speed. I do know that blue would be USB 3, but I also know that this machine doesn't have those. I also know the cable for my Ipod is not USB 3 either, so I am still unsure why I got the "high speed" complaint from the device driver. |
#6
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USB complains about not being high speed.
Metspitzer wrote:
On Tue, 18 Jun 2013 19:41:21 -0400, Metspitzer wrote: I have an ipod that I reformat and reset to factory. (Because I was getting a message that the hard drive was corrupted and I needed to format it) It still doesn't seem to be working. It gives a message that I should use Itunes to fix it. When I first plugged the (reformatted) Ipod into the machine I got a message from the device manager that I was trying to use a high speed port. I am pretty sure the mobo I have does have all USB 2 ports. At the time, I also had a PCI USB card installed that was supposed to also have two USB 2 ports. I have unplugged the card to try to narrow down the problem. Anyway, when the computer complained about not being plugged into a high speed port, it gave me a list of USB ports I should select. Since I have no idea what USB port was what I just closed that screen. After taking out the USB expansion card, I rebooted the machine with the Ipod plugged in. The computer booted fine, but when I tried to load Itunes, nothing happened. I tried to load it again and nothing happened. I unplugged the Ipod and Itunes loaded. I am thinking that I should just delete the USB drivers from the device manager and let XP just reload the one it needs without the extra USB card. Yes? No? What is next? http://imgur.com/NT93Ryc I forgot I took a screenshot of this. When you get a message like this or when you see the USB list in the device manager, just how are you supposed to know what port any of them are? It says "Apple iPod USB Driver", when it should be referring to a hardware device. That's perhaps a hint as to what is going on. Would some Apple software have installed a filter driver ? If it was a simple hardware dialog, I would have expected the string to be just "Apple iPod". I still don't know what motherboard make and model (if home built) or what computer make and model number this is (if pre-built Dell/HP). You wouldn't be using a USB2 card in it, unless you ran out of ports or some of your ports were damaged. ******* In this example, you can see the name of the hardware is just copied from the Device Manager string ("USB Composite Device"). http://www.laptop-junction.com/toast...orm-faster.jpg You would go to Device Manager (Start : Run : devmgmt.msc), then navigate to the USB section. Find the Apple iPod USB Driver entry, look at the driver files. If the driver files are Apple ones, then Apple is messing around. For simple things like USB storage devices, there would normally be standard "USB class" drivers owned by Microsoft in there. Custom drivers are used for things which don't fall into a standard class (a lot of modern hardware uses standards - only custom designed obscure hardware needs special drivers). It could be, that the Apple software is the problem. But what happens is, if you uninstall the Apple software, it won't clean out the Registry. There is probably a registry entry in there of some sort, which is screwed up. And since the search engines were un-helpful in finding an actual technical analysis of the Apple problem, I can't even guess as to what registry setting that might be. As I think I explained already, normally speed is negotiated on the spot, when the device is plugged in. It should not be recorded in the registry as such. It's supposed to be purely a hardware function. That dialog box on your screen, detects a mismatch between the USB config information that shows current speed and also shows device capability. So the software is merely an observer, noting the port-device pair is not running as fast as it could. Since the ports in your dialog say "Standard Enhanced", the "Enhanced" means they're EHCI, so there is an EHCI driver present. Now, the question would be, where is the iPod plugged into ? Are you using a "keyboard only" port ? In some chipset documentation, I've seen references to a port which is USB 1.1 only, but I've never seen references to that port being used (since there are typically a dozen other USB2 ports they can use instead). So if there is actually a port on a chipset, which is suited to keyboards, I just don't see manufacturers using it. There are procedures for clearing out the USB stack, and re-detecting all the hardware. That's what cleans out the registry. The manual way... It says to do it in Safe Mode. http://www.usbman.com/Guides/Cleanup...afe%20Mode.htm Using devcon (a Microsoft utility), from a script. http://www.robvanderwoude.com/devcon.php Look for the link labeled "RenewUSB.bat". It downloads as a text file, because the author of the script wants you to look at it with Notepad or Wordpad first, to see how it works. When you're satisfied it isn't malware, you change the file extension on the end to ".bat", so then it will be ready to run. The script downloads devcon from Microsoft, and the script calls devcon to perform the action of removing devices from Device Manager. What that script does, is try to find things with USB in the name, and remove them from Device Manager. Then, the OS will "rediscover" the hardware, and reinstall standard class drivers etc. In the case of the Apple device, when you plug it in after that procedure is finished, the driver should install itself for that device on that port. Since I could not see a successful resolution to your problem in Google, I can't really be sure what's broken. Is it an iPod hardware failure (in an odd state) ? Is the custom Apple filter driver borked ? Or, is it simply as described in the dialog, that you're plugged into the wrong port ? I can't tell here, from this distance... Paul |
#7
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USB complains about not being high speed.
On Wed, 19 Jun 2013 12:29:41 -0400, Paul wrote:
Metspitzer wrote: On Tue, 18 Jun 2013 19:41:21 -0400, Metspitzer wrote: I have an ipod that I reformat and reset to factory. (Because I was getting a message that the hard drive was corrupted and I needed to format it) It still doesn't seem to be working. It gives a message that I should use Itunes to fix it. When I first plugged the (reformatted) Ipod into the machine I got a message from the device manager that I was trying to use a high speed port. I am pretty sure the mobo I have does have all USB 2 ports. At the time, I also had a PCI USB card installed that was supposed to also have two USB 2 ports. I have unplugged the card to try to narrow down the problem. Anyway, when the computer complained about not being plugged into a high speed port, it gave me a list of USB ports I should select. Since I have no idea what USB port was what I just closed that screen. After taking out the USB expansion card, I rebooted the machine with the Ipod plugged in. The computer booted fine, but when I tried to load Itunes, nothing happened. I tried to load it again and nothing happened. I unplugged the Ipod and Itunes loaded. I am thinking that I should just delete the USB drivers from the device manager and let XP just reload the one it needs without the extra USB card. Yes? No? What is next? http://imgur.com/NT93Ryc I forgot I took a screenshot of this. When you get a message like this or when you see the USB list in the device manager, just how are you supposed to know what port any of them are? It says "Apple iPod USB Driver", when it should be referring to a hardware device. That's perhaps a hint as to what is going on. Would some Apple software have installed a filter driver ? If it was a simple hardware dialog, I would have expected the string to be just "Apple iPod". I still don't know what motherboard make and model (if home built) or what computer make and model number this is (if pre-built Dell/HP). You wouldn't be using a USB2 card in it, unless you ran out of ports or some of your ports were damaged. My mobo is: http://www.newegg.com/Product/Produc...82E16813131406 The only reason I had added an extra card was that my computer sits beside my desk in a corner. I have to reach over behind the desk to plug in a USB device. (It is a very old, very heavy and very large case) I can find the port in the expansion slot better than I can find the ones on the mobo. The expansion card has been removed permanently. ******* In this example, you can see the name of the hardware is just copied from the Device Manager string ("USB Composite Device"). http://www.laptop-junction.com/toast...orm-faster.jpg You would go to Device Manager (Start : Run : devmgmt.msc), then navigate to the USB section. Find the Apple iPod USB Driver entry, look at the driver files. If the driver files are Apple ones, then Apple is messing around. For simple things like USB storage devices, there would normally be standard "USB class" drivers owned by Microsoft in there. Custom drivers are used for things which don't fall into a standard class (a lot of modern hardware uses standards - only custom designed obscure hardware needs special drivers). This is what I see. Nothing about Apple. http://imgur.com/ETbXR1g It could be, that the Apple software is the problem. But what happens is, if you uninstall the Apple software, it won't clean out the Registry. There is probably a registry entry in there of some sort, which is screwed up. And since the search engines were un-helpful in finding an actual technical analysis of the Apple problem, I can't even guess as to what registry setting that might be. As I think I explained already, normally speed is negotiated on the spot, when the device is plugged in. It should not be recorded in the registry as such. It's supposed to be purely a hardware function. That dialog box on your screen, detects a mismatch between the USB config information that shows current speed and also shows device capability. So the software is merely an observer, noting the port-device pair is not running as fast as it could. Since the ports in your dialog say "Standard Enhanced", the "Enhanced" means they're EHCI, so there is an EHCI driver present. Now, the question would be, where is the iPod plugged into ? Are you using a "keyboard only" port ? The Ipod was plugged into one of the top USB pair. This would be the most common place to plug keyboard or mouse. The machine doesn't have a keyboard or mouse connected. I use Teamviewer. The only USB device currently connected is the printer. My case does not have front USB In some chipset documentation, I've seen references to a port which is USB 1.1 only, but I've never seen references to that port being used (since there are typically a dozen other USB2 ports they can use instead). So if there is actually a port on a chipset, which is suited to keyboards, I just don't see manufacturers using it. There are procedures for clearing out the USB stack, and re-detecting all the hardware. That's what cleans out the registry. The manual way... It says to do it in Safe Mode. http://www.usbman.com/Guides/Cleanup...afe%20Mode.htm Using devcon (a Microsoft utility), from a script. http://www.robvanderwoude.com/devcon.php Look for the link labeled "RenewUSB.bat". It downloads as a text file, because the author of the script wants you to look at it with Notepad or Wordpad first, to see how it works. When you're satisfied it isn't malware, you change the file extension on the end to ".bat", so then it will be ready to run. The script downloads devcon from Microsoft, and the script calls devcon to perform the action of removing devices from Device Manager. What that script does, is try to find things with USB in the name, and remove them from Device Manager. Then, the OS will "rediscover" the hardware, and reinstall standard class drivers etc. In the case of the Apple device, when you plug it in after that procedure is finished, the driver should install itself for that device on that port. Since I could not see a successful resolution to your problem in Google, I can't really be sure what's broken. Is it an iPod hardware failure (in an odd state) ? Is the custom Apple filter driver borked ? Or, is it simply as described in the dialog, that you're plugged into the wrong port ? I can't tell here, from this distance... Paul Since I really don't like to mess with 3rd party stuff, I am going to try to plug the Ipod into a Win7 laptop later. If it fails to recognize the Ipod, I will make a trip to the Apple store to fix it next visit to Atlanta. Thanks Paul |
#8
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USB complains about not being high speed.
Metspitzer wrote:
This is what I see. Nothing about Apple. http://imgur.com/ETbXR1g OK, take a look through *all* the Device Manager entries. Maybe the iPod is considered a storage device ? I would have thought the iTunes and rules on copying stuff, would prevent direct access. But that's the only thing I can think of, in terms of what an iPod might behave like. If you had a Zune player (i.e. Microsoft product), it would likely use MTP protocol. And then, they can enforce DRM (prevent copying or whatever), at the device level. MTP uses a driver that is delivered as part of Windows Media Player (a pretty obscure way to deliver a driver). I presume the iPod has some notion of that too. I don't recollect it being MTP though. So that leaves USB mass storage as an interface. And perhaps any Apple driver installed, is there to enforce any DRM rules they might want. That "Apple iPod USB Driver" text string, has got to be in Device Manager somewhere... http://imgur.com/NT93Ryc Paul |
#9
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USB complains about not being high speed.
Paul wrote:
Metspitzer wrote: This is what I see. Nothing about Apple. http://imgur.com/ETbXR1g OK, take a look through *all* the Device Manager entries. Maybe the iPod is considered a storage device ? I would have thought the iTunes and rules on copying stuff, would prevent direct access. But that's the only thing I can think of, in terms of what an iPod might behave like. If you had a Zune player (i.e. Microsoft product), it would likely use MTP protocol. And then, they can enforce DRM (prevent copying or whatever), at the device level. MTP uses a driver that is delivered as part of Windows Media Player (a pretty obscure way to deliver a driver). I presume the iPod has some notion of that too. I don't recollect it being MTP though. So that leaves USB mass storage as an interface. And perhaps any Apple driver installed, is there to enforce any DRM rules they might want. That "Apple iPod USB Driver" text string, has got to be in Device Manager somewhere... http://imgur.com/NT93Ryc Paul This is an area where I have no experience but my wife bought a Nexus a few days ago and I recall reading somewhere that when hooked to a computer it was seen as a player. I'm wondering if the yellow problem in his screen shot for the HD audio might be his Ipod? -- dadiOH ____________________________ Winters getting colder? Tired of the rat race? Taxes out of hand? Maybe just ready for a change? Check it out... http://www.floridaloghouse.net |
#10
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USB complains about not being high speed.
dadiOH wrote:
Paul wrote: Metspitzer wrote: This is what I see. Nothing about Apple. http://imgur.com/ETbXR1g OK, take a look through *all* the Device Manager entries. Maybe the iPod is considered a storage device ? I would have thought the iTunes and rules on copying stuff, would prevent direct access. But that's the only thing I can think of, in terms of what an iPod might behave like. If you had a Zune player (i.e. Microsoft product), it would likely use MTP protocol. And then, they can enforce DRM (prevent copying or whatever), at the device level. MTP uses a driver that is delivered as part of Windows Media Player (a pretty obscure way to deliver a driver). I presume the iPod has some notion of that too. I don't recollect it being MTP though. So that leaves USB mass storage as an interface. And perhaps any Apple driver installed, is there to enforce any DRM rules they might want. That "Apple iPod USB Driver" text string, has got to be in Device Manager somewhere... http://imgur.com/NT93Ryc Paul This is an area where I have no experience but my wife bought a Nexus a few days ago and I recall reading somewhere that when hooked to a computer it was seen as a player. I'm wondering if the yellow problem in his screen shot for the HD audio might be his Ipod? But it mentions HDAudio bus. Usually that corresponds to motherboard sound. If there was a sound device on USB, it would mention USB instead. I still think that text string, is in Device Manager somewhere. I've been trying to avoid bringing out the heavy guns, like using a devcon query to dump the entire Device Manager as text. I like the weirdness, of so far, nothing in the pictures really aligning with the symptoms :-) Paul |
#11
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USB complains about not being high speed.
On Thu, 20 Jun 2013 07:24:47 -0400, Paul wrote:
dadiOH wrote: Paul wrote: Metspitzer wrote: This is what I see. Nothing about Apple. http://imgur.com/ETbXR1g OK, take a look through *all* the Device Manager entries. Maybe the iPod is considered a storage device ? I would have thought the iTunes and rules on copying stuff, would prevent direct access. But that's the only thing I can think of, in terms of what an iPod might behave like. If you had a Zune player (i.e. Microsoft product), it would likely use MTP protocol. And then, they can enforce DRM (prevent copying or whatever), at the device level. MTP uses a driver that is delivered as part of Windows Media Player (a pretty obscure way to deliver a driver). I presume the iPod has some notion of that too. I don't recollect it being MTP though. So that leaves USB mass storage as an interface. And perhaps any Apple driver installed, is there to enforce any DRM rules they might want. That "Apple iPod USB Driver" text string, has got to be in Device Manager somewhere... http://imgur.com/NT93Ryc Paul This is an area where I have no experience but my wife bought a Nexus a few days ago and I recall reading somewhere that when hooked to a computer it was seen as a player. I'm wondering if the yellow problem in his screen shot for the HD audio might be his Ipod? But it mentions HDAudio bus. Usually that corresponds to motherboard sound. If there was a sound device on USB, it would mention USB instead. I still think that text string, is in Device Manager somewhere. I've been trying to avoid bringing out the heavy guns, like using a devcon query to dump the entire Device Manager as text. I like the weirdness, of so far, nothing in the pictures really aligning with the symptoms :-) Paul I tried the Ipod on a Win7 machine. Itunes doesn't recognize the Ipod on that machine either. I think this is a job for the Apple store. |
#12
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USB complains about not being high speed.
Metspitzer wrote:
On Thu, 20 Jun 2013 07:24:47 -0400, Paul wrote: dadiOH wrote: Paul wrote: Metspitzer wrote: This is what I see. Nothing about Apple. http://imgur.com/ETbXR1g OK, take a look through *all* the Device Manager entries. Maybe the iPod is considered a storage device ? I would have thought the iTunes and rules on copying stuff, would prevent direct access. But that's the only thing I can think of, in terms of what an iPod might behave like. If you had a Zune player (i.e. Microsoft product), it would likely use MTP protocol. And then, they can enforce DRM (prevent copying or whatever), at the device level. MTP uses a driver that is delivered as part of Windows Media Player (a pretty obscure way to deliver a driver). I presume the iPod has some notion of that too. I don't recollect it being MTP though. So that leaves USB mass storage as an interface. And perhaps any Apple driver installed, is there to enforce any DRM rules they might want. That "Apple iPod USB Driver" text string, has got to be in Device Manager somewhere... http://imgur.com/NT93Ryc Paul This is an area where I have no experience but my wife bought a Nexus a few days ago and I recall reading somewhere that when hooked to a computer it was seen as a player. I'm wondering if the yellow problem in his screen shot for the HD audio might be his Ipod? But it mentions HDAudio bus. Usually that corresponds to motherboard sound. If there was a sound device on USB, it would mention USB instead. I still think that text string, is in Device Manager somewhere. I've been trying to avoid bringing out the heavy guns, like using a devcon query to dump the entire Device Manager as text. I like the weirdness, of so far, nothing in the pictures really aligning with the symptoms :-) Paul I tried the Ipod on a Win7 machine. Itunes doesn't recognize the Ipod on that machine either. I think this is a job for the Apple store. You have the "USB Composite Device". It could be that is the iPod. In Device Manager, do Properties : Details, and look for "HardwareIDs". USB uses VID/PID while PCI uses VEN/DEV. Since this is USB, we use this list. We'd be looking for the hardwareID numbers in here, to see if the device is working properly. The device wouldn't be detected in Device Manager properly, if the ID had changed (for hardware failure reasons). http://www.linux-usb.org/usb.ids 05ac Apple, Inc. 1225 iPod Nano 4.Gen (DFU mode) So in that example, VID=05ac (Apple) and PID=1225. Lots of USB devices, have non-fixed IDs. When USB devices first came out, the IDs tended to be fixed. But now, that 1225 number is stored in a flash chip somewhere. When a modern device becomes defective, the VID and PID might change on it. That's what happened to a hard drive enclosure here, when the Cypress chip inside "forgot" its ID. It could be re-programmed, with the same kind of program they used at the factory. So I was able to restore the config info. Cheesy webcams are like that too. One controller/sensor combination can have about 20 different IDs. All because the hardware supports programming the value. They claim it makes it possible to assign different company names to the products, but I think it's a farce. If the devices are identical from a hardware perspective, they should be assigned the same number. And making them less programmable, would lead to fewer "oopsy" mishaps, like my Cypress chip forgetting who it is. If the ID is "set in cement", you can't lose it :-) Paul |
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