Here is a patch to correct debug messages in cdc-acm driver.
The problem is that dbg automatically appends \n, so the
extra newline character gets logged with wrong level and thus
is output to console.
--- cdc-acm.c.1 2006-05-14 00:21:57.0 +0400
+++ cdc-acm.c 2006-05-14
On Sat, May 13, 2006 at 09:32:50AM +0200, Oliver Neukum wrote:
Unfortunately there's no hint in the descriptors. I've just used the device
id. Could you test the attached version?
It works nicely.
But I don't quite understand the *2 multiplier for readsize.
Is it correct to request more data
On Tue, May 09, 2006 at 11:52:36PM +0200, Oliver Neukum wrote:
In the `n1' case the second attempt of atv results in a duplicated line.
`n16' produces lots of small dups. `old' produces no dups.
Could you please remobe #undef DEBUG from the driver and rerun the n=1 test?
Typescript and
On Fri, May 12, 2006 at 07:31:37PM +0200, Oliver Neukum wrote:
Very good. It seems that all corrupted buffers have a length of 128.
Could you remove the multiplicator *2 from this line:
readsize = le16_to_cpu(epread-wMaxPacketSize)*2;
and retest?
That's it! Now with NRU=NRB=1 it works
On Sat, May 06, 2006 at 10:23:05AM +0200, Oliver Neukum wrote:
Am Samstag, 6. Mai 2006 07:20 schrieben Sie:
On Sat, May 06, 2006 at 12:05:42AM +0200, Oliver Neukum wrote:
It might be that your modem cannot cope with the ring buffer patch
that went into 2.6.16. Can you revert a specific
On Tue, May 09, 2006 at 07:19:08PM +0200, Oliver Neukum wrote:
Very good. It seems that something in your system cannot cope with higher
speeds of the 2.6.16 driver. Could you please take the 2.6.16 driver and
half the values of ACM_NRU and ACM_NRB in cdc-acm.h until you find a
value that
On Mon, May 01, 2006 at 02:11:54PM -0700, Pete Zaitcev wrote:
Could you get a usbmon trace or something? I cannot make
any sense from these messages. Even if I did, it's hard to
correlate them to your duplicates.
Ok, here is usbmon trace and corresponding chat log.
In this case a three byte
On Fri, Apr 21, 2006 at 10:22:46AM +0400, Alexander V. Lukyanov wrote:
It appears that the duplicate data are coming from a lower level of usb
drivers, but I have not taken a look there yet.
Here are some more debug messages. I'm still not sure what causes the
duplicates, driver or modem
Hello!
I have ZyXEL UNO modem which has usb acm interface. Starting with kernel
version 2.6.8 the driver cdc-acm began to hand when the modem connection
was dropped due to being idle. After the hang, no data could be read from
the device /dev/usb/ttyACM0, but writting was ok. The led data was lit
