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Does the iPhone SDK allow for serial port connections?
Does the iPhone SDK allow for serial port connections? Can I use RX and TX serial lines over the dock connector? I do not want to distribute the application over the app store, I want this to be a tightly controlled distribution.
So bottom line:
Can I use the dock for serial connections with the official SDK?
Can I create a program and choose to distribute it on my own? (This may even be small enough quantities that I can literally connect each iPhone to my computer)
So bottom line:
Can I use the dock for serial connections with the official SDK?
Can I create a program and choose to distribute it on my own? (This may even be small enough quantities that I can literally connect each iPhone to my computer)
I’m confused
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Inappropriate?Hi,
There are many people that would like to use the SDK to use the serial port. Here is a rumor I heard of how to access it:
*use the fopen call
*The device parameter is /dev/ttyS0 (or /dev/ttys000 or /dev/ttys001)
*Then, use fread and fwrite on the descriptor returned
An open question is how one would change the serial port parameters.
I don't know for sure if this works. But, if enough people are trying out some different methods to access it, I believe one of us will succeed. Then it will be great, as so many applications could nicely utilize the serial port!!!
Ben Tabatowski-Bush
ECYPH LLC
www.pcables.com -
Inappropriate?presumably, one could also use screen(1) in conjunction with a 30pin-to-DB9 cable (google for "iphone serial cable") and have a nice portable serial console for UNIX boxes (something like "screen /dev/ttyS0"). I used to do this on a Treo (and before that on a Palm III and a Handspring Visor), but I'm not sure yet whether it will "Just Work" on an iPhone. I'm about to buy a cable and find out though. :) -
Inappropriate?cable has arrived, "screen /dev/tty.iap" does not currently DTRT. Will post a follow-up here when I have something to add.
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Inappropriate?Apparently you can get a Dock Connector -> Serial cable for around $35. Google it on eBay. I might be interested in developing an app if I could get enough of these cables.
I’m confident
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Inappropriate?The cable will need special hardware (an Authentication chip.) I will look into building a cable with the right hardware.
Ben
sales@pcables.com -
Inappropriate?I already have a functional 30-pin to DB-9 cable I picked up a few months ago. My problem is apparently that the requisite TTY either didn't exist or isn't implemented as it is on a standard UN*X. It would be nice if one didn't have to jailbreak to get a decent local command line with a standard UN*X toolset, but I guess that's too much to hope for. :)
