by modem firmware crash. Modem also works much better
in Linux when using 3G (WCDMA) or 4G (LTE) instead of 2G (GSM).
Merry Christmas,
/Erik Alapää
Excerpt from kern.log:
Dec 15 13:12:10 vmw-wheezy kernel: [ 4336.877612] [ cut
here ]
Dec 15 13:12:10 vmw-wheezy kernel
is crude but hopefully useful
for debugging.
If more info is needed, let me know and I will provide it.
Best regards,
/Erik Alapää
//
// Program that causes temporary loss of cdc-wdmN device and huawei_cdc_ncm
// driver reload after 121 AT commands sent.
//
// No makefile, just compile with 'g++ -g
Correction:
Unfortunately, there was a bug in my test program, an '\r' was added
to the AT command at each lap of the loop... So the driver reboots
when 120 superfluous '\r' are included in the AT message. May still be
a bug, but a less obvious one.
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Will try reporting to the hw company, maybe there is a firmware
upgrade on the horizon.
/Erik Alapää
On Mon, Nov 3, 2014 at 9:32 PM, Greg KH gre...@linuxfoundation.org wrote:
On Mon, Nov 03, 2014 at 09:18:10PM +0100, Erik Alapää wrote:
Correction:
Unfortunately, there was a bug in my test
On Sat, Oct 4, 2014 at 12:02 AM, Oliver Neukum oli...@neukum.org wrote:
I suggest you take an usbmon trace to look for the CDC notification.
Hi again, took a while to respond because I have been away on a trip.
I am new at sniffing USB traffic, so forgive me if the below info is
inadequate. I
.. = Synchronisationtype: No Sync (0x00)
..00 = Behaviourtype: Data-Endpoint (0x00)
wMaxPacketSize: 512
..10 = Maximum Packet Size: 512
bInterval: 32
On Sat, Oct 4, 2014 at 12:02 AM, Oliver Neukum oli...@neukum.org wrote:
On Fri, 2014-10-03 at 10:01 +0200, Erik
On Sat, Oct 4, 2014 at 12:02 AM, Oliver Neukum oli...@neukum.org wrote:
I suggest you take an usbmon trace to look for the CDC notification.
OK, I will do so and post the results. Thank you for the suggestion.
Regards,
/Erik Alapää
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On Sat, Oct 4, 2014 at 12:02 AM, Oliver Neukum oli...@neukum.org wrote:
I suggest you take an usbmon trace to look for the CDC notification.
OK, I will do so and post the results. Thank you for the suggestion.
Regards,
/Erik Alapää
On Sat, Oct 4, 2014 at 12:02 AM, Oliver Neukum oli
connection if using
/dev/ttyUSB0.
If more info is needed, let me know and I will provide it.
/Erik Alapää
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