Re: [PATCH RFC 0/11] usbserial: Serial Core port.

From: Luiz Fernando N. Capitulino
Date: Mon Jun 05 2006 - 08:13:09 EST


On Sun, 4 Jun 2006 16:24:53 -0700
Pete Zaitcev <zaitcev@xxxxxxxxxx> wrote:

| On Sun, 4 Jun 2006 20:12:23 -0300, "Luiz Fernando N. Capitulino" <lcapitulino@xxxxxxxxxxxxxxx> wrote:
|
| > | I understand. My intent was different, however. One of the bigger sticking
| > | points for usb-serial was its interaction with line disciplines, which are
| > | notorious for looping back and requesting writes from callbacks
| > | (e.g. h_hdlc.c). They are also sensitive to drivers lying about the
| > | amount of free space in their FIFOs. This is something you never test
| > | when driving a serial port from an application, no matter how cleverly
| > | written.
|
| > In all the tests the modem was configured to answer the calls, and the
| > cell phone was configured to dial to the modem (my home's number).
|
| This is exactly backwards, and so it tests different code paths.
| The line discipline is involved into driving a cooked mode port,
| e.g. the one where getty is.

I was going to try it last night and realized that my cell phone
can't answer data calls. :((

--
Luiz Fernando N. Capitulino
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