USB Port Access

Hi. I have developed a web-based neuropsychological testing
application that embeds flash applications made using Flash CS3.
One particular Flash application presents a series of visual
stimuli to which the subject must respond. I would like to
synchronize a separate system that is recording physiological data
with the presentation of the visual stimuli. One way would be to
somehow have the Flash application output a TTL pulse using a USB
to TTL serial cable. This would require that the Flash program is
able to access a local USB port. Is this possible? Any help or
advice would be greatly appreciated! I apologize if this is not the
most appropriate place to pose such a question. Thanks.

Thanks for that. Have now purchased a OTG cable & everything is working fine. You would think that this is something that should be covered in the operating instructions as it is so basic that you will want to upload & download things. I now see that some other manufacturers supply one of these cables in the box from new. That would be good for HP to do as well! Many thanks again.

Similar Messages

MSI 845PE MAX2-FIR...6 USB Ports?

Okay, so I recently installed my MSI mobo. everything went exceptionally well. No major issues at all...except...
Well, here goes...
The manual states that this motherboard has 6 USB 2.0 compatability...2 Rear, and 4 Front.
Okay, obviously the 2 rear ones are integrated, but where are the pins for the 4 front USB ports?
I have a Lian Li aluminum case. It has 4 USB ports accessable on the front of the case.
Inside the case, coming from the front ports, there are a total of 16 wires, all single pin connectors, (4 per port). I can't seem to find where to connect these to on the mobo, so I can use my front ports.
Any help would be appreciated.
Fres

According the the manual the board has 4 rear and 2 front ports.
There are 2 rear ports under the PS/2 ports and another 2 above the audio ports.
The 2 front ports are connected to JUSB1 (page 2-27 of the manual).

HT2421 If I attach a hard drive to the USB port, can I access it from the wired network, while simultaneously creating a separate wifi network with NO access to the hard drive?

I already have a wireless network (call it Network A) with connectivity to various wired and wireless devices. I have a USB hard drive that I directly attach to my MacBook Air. I use it for Time Machine backups and general storage. I would like to move this drive to an AirPort Extreme. I would like to continue to be able to reach it via Network A, but also use the AirPort to create a guest Network (Network B). I don't want the guest network to access the hard drive.
Now, I know I can plug a hub into the USB port and put (I hear up to 3) hard drives on it. Can I determine which ones are accessable by Network A, and by Network B?
Bonzo...

Several things to consider.
You cannot create a wireless network for guests if the AE is bridged. It has to be the main router in the network.
You cannot use the existing TM backups on the USB drive.. if you plug into a network it will need to be wiped.. and only AC model can produce reliable TM backups.. the earlier models are not reliable for TM backups.
See http://pondini.org/TM/Airport.html
These two factors alone may be enough to make you reconsider.
If you can create a guest network.. and you can overcome the limitations of airdisks.. then any person on the guest network should not be able to access the disk drive.. but if you wish to go ahead Bob Timmons might be able to confirm it.. I stay away from USB drives on routers.. I do not and will not use a router as a NAS.. it is underpowered and simply unsuitable long term.. a cheap single disk NAS is many times faster.. more reliable.. and has a marvellous thing called backup.. no USB disk or even internal disk in a TC can back itself up. .nor can TM backup network drives.. so any data you store on a USB drive is going to be gone one day.. unless you go to great lengths to back it up .. to where.. another USB drive plugged into another router somewhere.. the definition of slow.. should be copying files between two usb drives in an apple network using wireless. You will experience new levels of pain and suffering.. likened to the belly of the Sarlacc.

I have a router that has a readyshare USB storage access port that has mp4's of movies. So how can I view them from my iPad 2 ?

I have a router that has a readyshare USB storage access port that has mp4's of movies. So how can I view them from my iPad 2 ?

I just bought a NETGEAR WNDR3400v2".
I own a mac, running 10.7 and an ipad 1.
I can access my USB stick, on the netgear wireless router, from my mac or ipad.
From a mac or ipad .... http://readyshare.routerlogin.net/shares/USB_Storage/ or just http://readyshare.routerlogin.net/shares
Also, on a mac only, try, go > connect to server> smb://readyshare
Works for me!

I have the apple usb stick to install lion but when I put it into the usb port it does not appear in finder? How do I get access to it to install?

I have the apple usb stick to install lion but when I put it into the usb port it does not appear in finder? How do I get access to it to install?

Try one of your other USB ports. Be sure to insert it with the plated fingers pointing upwards.

Accessing usb ports after installing virtualbox

I have recently installed virtualbox and subsequently Windows 7 on my Macbook pro. My main purpose was to be able to use CorelDraw. However when I switch to windows using Virtualbox, I cannot access my USB ports or my CD Drive. Has anyone had the same challenge and how do I overcome it? I am running Mountain Lion on my Pro.

I'd suggest you take this issue up in the forums for VirtualBox:
https://forums.virtualbox.org
You'll be more likely to get help there (particularly since the forum you posted in here is for questions about the communities themselves).
Regards.

Hp p6367c front panel usb ports: how do I access these?

There is a button in front along the side that I assume is supposed to open the expansion bay and provide access to front panel usb ports, but nothing happens when I press this button.

Please look the upgrade and service manual page 13. You will notice the DVD drive, the empty 2nd CD/DVD bay, maybe the pocket drive (if so equipped). Below that is the mystery USB ports, and audio ports.
The panel likely has a small tab, and the access panel flips up, or slides up/down. Without knowing the exact face plate design, it's difficult to know. But if you look at the manual, the mystery will be exposed.
I am a volunteer. I am not an HP employee.
To say THANK YOU, press the "thumbs up symbol" to render a KUDO. Please click Accept as Solution, if your problem is solved. You can render both Solution and KUDO.
The Law of Effect states that positive reinforcement increases the probability of a behavior being repeated. (B.F.Skinner). You toss me KUDO and/or Solution, and I perform better.
(2) HP DV7t i7 3160QM 2.3Ghz 8GB
HP m9200t E8400,Win7 Pro 32 bit. 4GB RAM, ASUS 550Ti 2GB, Rosewill 630W. 1T HD SATA 3Gb/s
Custom Asus P8P67, I7-2600k, 16GB RAM, WIN7 Pro 64bit, EVGA GTX660 2GB, 750W OCZ, 1T HD SATA 6Gb/s
Custom Asus P8Z77, I7-3770k, 16GB RAM, WIN7 Pro 64bit, EVGA GTX670 2GB, 750W OCZ, 1T HD SATA 6Gb/s
Both Customs use Rosewill Blackhawk case.
Printer -- HP OfficeJet Pro 8600 Plus

Cannot access external drive - remembers what was previously in that usb port

Lightroom 5.5 will not recognize my current external drive - it shows in the navigation panel the missing folders from a different external drive, and will not recognize the drive that my computer system recognizes.
I have tried moving the drive to another usb port but no luck (tried all the ports). I have closed and re-opened LR, but it still remembers a previous drive and not the current drive. My computer will recognize the drive.
Help would be appreciated!

DebS55 wrote:
External drives do not have "eject" functions - that is only true with flash drives.
Hi,
My apologies of course you are right, the only other thing I can think of is that the system isn't assigning the previous drive letter as lightroom does look for that.
Rikk Flor provided a solution in external hard drive and hopefully that may help.

Access USB port

How can I communicate through USB port of a PC, just like serial communication with COM1 or COM2 ? Is there any package like javax.comm ? Please refer related web sites also.
Avijit

I don't know about a package to do this but I hope it will come soon.

One USB Port not Working Properly on MacBook Pro 3,1

I have an older macbook 3,1 running Mavericks OS and recently one of my left USB ports has not been:
1) able to eject external hard drives plugged into it (I have to force eject)-instead it gives me a message that one or more programs may be using it (even though I don't have any programs using it). The hard drive is being powered by USB has a 3.0 connection although this wasn't a problem in the past... I tried the other USB port and it can eject just fine from that port.
2)Intermittent communication with mouse.
Not sure if this is a hardware issue but when I try to run diagnostics on this laptop by holding down the "D" key at startup it doesn't take me to diagnostics. I no longer have the discs for this laptop (containing said hardware test) so I can't boot the diagnostics from that discs. In lieu of a hardware test I opened CONSOLE and did a search for USB and there were a couple of these messages:
8/29/14 12:13:43.000 AM kernel[0]: **** [IOBluetoothHostControllerUSBTransport][SuspendDevice] -- Suspend -- suspendDeviceCallResult = 0x0000 (kIOReturnSuccess) -- 0xdc00 ****
Is this a logic board issue? Would rolling my OS back to pre-Mavericks work? The problem didn't emerge right when I updated to Mavericks however I have had luck changing OS stuff (updating or rolling back) with faulty USBs...
Here are other troubleshooting methods I have attempted with no success:
-Disk Utlity (repair disk and permissions)
-RESET PRAM NVRAM
-Remove battery
-RESET SMC
-Shut Down
-Run Disk Utility @ startup
I'd love to get access to a Hardware Test compatible with my macbook. The links I have found online are to incomplete files. If someone @ Apple could send some Hardware diagnostics tool my way via a disk image that would be perfect.

Did you boot into Recovery or try & run OS X Utilities, to attempt a test?
Depending on the computer, that may be your best bet, short of taking
the computer to an Apple Store with Genius bar; or to an AASP who is
trained in Apple repair & testing services.
A replacement of original install restore DVD with the correct AHT on
a bootable DVD, could be obtained by contacting Apple support or
the main online Apple sales, or applecare; there would be a fee.
They'd need to know the Serial Number and product info, and you'd
have to provide a form of payment in order to get replacement discs;
and if the computer is way too old, those may be harder to get now.
The main system tools could be installed in Recovery partition.
And Ms Sammit may have answered this.
Good luck & happy computing!
edited

Since upgrading to Lion 10.7.3 my USB ports don't work for anything. Any ideas?

I have been a long-term (nearly 25 years) Apple User, so am reasonably familiar with the system. I upgraded about 1 week ago with an automatic update to Lion and since then I have had massive problems using the USB ports on my Mac Pro (which is from 2009). At first this affected every USB port and I couldn't use my keyboard or mouse, but since restarting a couple of times, and repeatedly inserting and removing them into the various rear ports, I can use these plugged in via monitor cable.
However, the USB ports for other devices are extremely problematic and frustrating as nothing seems to work consistently on them. This affects all devices that I usually access (and which all worked seamlessly before upgrade), including my iPhone (which will power up but not be recognized when plugged into any front or rear port), external drives, cameras, and my printer. However, for the printer only (a Brother MFC 9840) it will work some times if I restart the computer, but not others. I have tried rebooting, switching ports, using other cables, changing power cords. I have read multiple threads on USB issues with Lion for a solution including those to do with printers (https://discussions.apple.com/thread/3301218?start=0&tstart=0), those to do with external drives (https://discussions.apple.com/thread/3510032?start=30&tstart=0), and even those to to with modems (https://discussions.apple.com/thread/3164614?start=0&tstart=0). Despite this, I note that there appear to be no consistent solutions reported and that in other support threads including reseting PRAM. I do see many more problems than I would have expected.
I don't know if this is related, but after the upgrade I also had problems with Outlook not working, but for some reason that seemed to stop after a couple of days. Just in case I also checked to see if I was affected by the malware program (https://discussions.apple.com/thread/3856206?tstart=30), but thankfully I am not.
I am sure this has to do with the upgrade to Lion 10.7.3, and have been expecting something from Apple to address these issues, but nothing so far. I am completely lost for solutions, and any help gratefully received.
Slightly unrelated, but again speaking to a possible change in culture in Apple that has seen upgrades cause more problems than they solve, I am also affected by the change from MobileMe to iCloud and the loss of push e-mail. For those not aware, this has been an issue for more than 6 months, and on the discussion there are now 35 pages of comments, and no solution in sight (https://discussions.apple.com/message/18050375?ac_cid=142432#18050375).

Generally speaking, a full recharge and reboot after the recharge will solve the issue with the ports. Many ports will also start to fail if you leave devices hooked up to them when the machine is asleep. Unfortunately, many non-Apple devices don't understand the low power mode ports go into after Energy Saver is woken up, and only a reboot solves that problem.

Is it possible to print from Windows 8.1 to a printer connected to the USB port on an Airport Express?

Is it possible to print from Windows 8.1 to a printer connected to the USB port on an Airport Express?
a) HP printer with USB port only (no ethernet port) connected to Airport Express
b) No issue printing from Macs
Tests
1) Installed Bonjour 2 - does not find printer (now uninstalled)
2) Bonjour 3 is listed in programs but no way to access
3) Using TCPIP address (and no Bonjour) gives 'Unsupported Personality' error when printing test page
Regards
Richard
p.s. why are all Windows 8.1 questios n the forum 'Locked' with no reply?

This is possible, but not with Bonjour or any other fixes. It is just a printer set up based on the Port name of the Airport, 10.0.1.1.
I found the answer on YouTube, Title: Windows Printing For Apple AirPort Extreme without Bonjour Wireless wifi.

Print a File from Forms to a Printer connected to USB Port

Hi All,
I have a printer connected to the USB port to my local machine.
I access web application Forms 9i AS and try to print a report on my local printer.The report is opened using web.show_document in the Internet explorer browser window. There are several pages in the report and i need a page break to be recognized on each page. For remote printing i tried using ORARRP utility but it does not print from a printer connected to a USB port. But it works when the printer is connected to a parallel port.
How do i achieve this, please share your thoughts on this and solution as well if this is feasible
Expecting a favourable reply from the forum users.
Thanks in advance

WEB.show_document is mainly for running a report that you want to display in a browser but you can still use it to create a file in the report server even though I would recommend to use RUN_REPORT_OBJECT instead ...
You can take a look at metalink note 207396.1 - How to Run Reports From Forms 9i / 10g Using RUN_REPORT_OBJECT.
It appears you are already using it since WEB.show_document in your case is just used to retrieve the output from a job that was previously run, most likely with RUN_REPORT_OBJECT.
Can you post the code used to run the report ? It will be easier to convert it to generate a file if we have it..
The file name you assign it when you call the report (DESNAME=d:\mysharedfolder\mytextfilenameyyymmddhhmiss.txt) so that it is unique and you delete it after the report is printed, webutil can give you a private folder for the user in the application server, in case the data is sensitive, you would run the report with DESTYPE=FILE and MODE=CHARACTER.
You would need two folder locations, one in the application server, webutil can help you with that, and another one in the client PC, it could be the C:\TEMP folder if you will ...

USB Ports on 3 month old Satellite C655-S5049 do not work-even after Recovery to "Out-of-Box" state

Hello - Hoping someone can help with another suggestion- it doesn't look good.
Both USB ports on my wife's 3 month old Satellite C655-S5049 are non-functional with any USB device. Flash drives, wireless mouse, and external hard drive (powered) that all work on all of my other computers, do not work in either of this laptop's USB ports.
This problem seems to have developed gradually, and became noticeable previously as non-responsiveness in the wireless mouse, which gradually became a concern, with the computer appearing to freeze or lock-up - probably because of the number of times the mouse was clicked on shortcuts and executables before something happened.
The ports are now completely "dead"- no recognition of anything inserted once the computer is up and running.
There appears to be a thermal component involved, since I was able to get the devices recognized and working for up to a minute when booting the computer with the devices in the ports after it had been off for several hours after I did the default state recovery. The flash drive and mouse were recognized, drivers loaded message, but they then went to "unplugged" before I could get the cursor moving. I was able to access the flash drive, since I did it as soon as the driver loaded, but then it disappeared ("un-plugged" itself in the driver loaded message box). I can also get them recognized from this COLD boot state when I immediately plug them in once Windows 7 (64) loads, but they quickly disappear. If I wait a few minutes before re-booting, they flash during the Windows boot, but drop-out before it completes. If I wait 3-4 hours to re-boot, they flash (are recognized) for about a minute (Windows completely loads), but then they drop out.
I tried all of the suggestions on this board (and others) before doing a Recovery to Factory Default state. I have tried it with the original version 1.20 Bios, and with the version 1.50 Bios update. All driver updates have been downloaded and installed. The laptop does occasionally lock-up at the Toshiba screen during boot, and is verrrry slow in some operations (2 hours to do the recovery discs). The only other noticeable problem (at this time) is an occasional drop-out of wireless (Atheros AR9285) connectivity, which I have been blaming on the router since it is sporadic and infrequent (not consistent with the thermal argument). These problems are all after the Factory Default State recovery operation, so my assumption is that they are hardware based.
Any suggestions for a solution? This is a standard spec Satellite C655-S5049 that I was considering adding another 2GB memory to, but now I am unsure of its' future. A laptop cooler that runs from a USB port seems counter-productive.
I am technically capable, so you can be much briefer in your response than I have been in trying to fully detail the problems. This isn't the NVidia chip, but it does bring back memories of laptops past.
Thanks for any help,
G

I AM HAVING THE SAME PROBLEM WITH THE SAME MODEL. I GOT THE SERVICE
MANUAL AND I'M THINKING TO OPEN IT AND SEE IF THERE'S SOME PHYSICAL BAD CONNECTION
INSIDE. BUT LIKE YOU SAID. IT'S ONLY THREE MONTHS OLD.!!! I DON'T WANT TO RUIN THE WARRANTEE.
BUT THIS IS VERY FRUSTATING. I WANDER IF TOSHIBA DOES THIS ON PURPUSE.!!! KEEP IN TOUCH AND
IF YOU NEED THE SERVICE MANUAL CONTACT ME AT [email protected]
THANK YOU.!!!!

I plugged in my ipod and now i get the error message: Because a USB device was drawing too much power from your computer, one or more of your USB devices have been disabled" - i have a MAcBook pro and now my USB ports do not work - can anyone help me ???

i plugged in my ipod and now i get the error message: Because a USB device was drawing too much power from your computer, one or more of your USB devices have been disabled" - i have a MAcBook pro and now my USB ports do not work - can anyone help me ???

Sometimes you have to reset the SMC two or three times for it to work, don't know why. I've seen that error message before and 100% of the time it was fixed with an SMC reset. I suppose it's possible that your keyboard or mouse IS drawing too much power, do you have access to another you could try?

USB Port Access

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