Re: usb: class: cdc-acm: /dev/ttyACM0 HowTo disable interrupt and control URBs

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On Friday 09 November 2012 14:42:24 Markus Kolb wrote:
> Hi,
> 
> is it and how is it possible when using the acm_tty that
> there is not sent any interrupt or control URB?

It is not possible.

> My connected device has problems handling this stuff and
> doesn't respond to the bulk URB which is timed somewhere
> between.
> 
> I've found e.g.
> URB_NO_INTERRUPT and USBDEVFS_URB_NO_INTERRUPT in
> http://code.metager.de/source/xref/linux/stable/drivers/usb/core/devio.c#1386
> but how do I set this?

You don't. This is for usbfs. If your modem cannot handle status
transfers it makes no sense to use cdc-acm. You better blacklist the
device and use usb-serial.

	Regards
		Oliver

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