Re: [avrdude-dev] “Not a typewriter” avrdude err or on Android

[Anton Smirnov]

removing isatty() does not help since now i have the same error on setting
baud rate:
avrdude: ser_setspeed(): tcgetattr() failedavrdude: ser_open(): can't set
attributes for device "/dev/bus/usb/002/002": Not a typewriter

(usb device is opened using file descriptor though usb file path is used
for error message).

What is the reason of error? Can i walk around using modified libusb which
can work
with file descirptor (
https://github.com/martinmarinov/rtl_tcp_andro-/tree/master/jni/libusb-andro/libusb,
open2() function)?
is there any existing serial impl which can work with file descriptor like
i;m trying to use?


2013/6/10 Joerg Wunsch <address@hidden>

> As Anton Smirnov wrote:
>
> > Okay, since i'm completely in stuck with it i have to try just
> > comment/remove isatty() check.
>
> That's simple enough.  Let's hope the remainder does work.
>
> > Do you think i have to just pass file descriptor as int and just
> > skip using socket?
>
> You could give it a try.  Just fprintf() the file descriptor number
> to stderr when using your socket method.  If it's the same anyway,
> try skipping the socket.
>
> If this is indeed useful to people, we could perhaps special-case
> something for that in AVRDUDE itself, just as we special-case
> filenames that start with "usb:" right now.  So, say we prefix
> them "fdesc:<NUMBER>", where <NUMBER> refers to an open file
> descriptor that has been inherited from a parent process, then
> AVRDUDE bypasses the fopen(), and just proceeds to use the
> descriptor.
>
> Of course, it would be even better to use the libavrdude backend in
> future, but I think there's a bit of work ahead until that's really
> useful.
> --
> cheers, Joerg               .-.-.   --... ...--   -.. .  DL8DTL
>
> http://www.sax.de/~joerg/
> Never trust an operating system you don't have sources for. ;-)
>
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