Hi Greg,
Thanks you for the details.
Could you please tell me what is difference in Kernel version 2.6.9-5
and 2.6.15 with respect to usbserial driver?
How does it help me in this problem?
In case if we use kernel 2.6.15 I will let you know so that I can get
support from you.
Regards,
Shalini
Hi Greg,
Thank you foe the details
We are using usb serial driver versions 2.0 will this work for 32
devices?
If not, how to make it work for 32 devices?
Once we tried with 16 mobile and try to do ppp up on theses mobiles and
found mobiles were not responding after that.
Please give me suggest
Hi Greg,
Thank you for the information.
We are planning to use up to 32 devices with 3 different types of
devices.
I hope it should be ok with usbserial driver.
Please give suggestions on this
Regards
Shalini G
-Original Message-
From: Greg KH [mailto:[EMAIL PROTECTED]
Sent: Tue
Hi Greg,
Could you please tell me how many USB devices does usbserial driver
supports?
Regards,
Shalini G
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Hi Greg,
The Kermit application closes once the mobile is turned off (using
AT+CFUN=0 command or any manually turn off the mobile) and it does not
allows to perform any further operation.
Our observation on this is after powering the mobile off disconnect
function is called and the file descripto
Hi
If it provides only AT command interface, how can you do other data
calls using this phone? How is it possible just using one interrupt
endpoint?
As per the "Subclass Specification for Wireless Mobile Communication
Devices", "The Device Management data exchange facility allows
management in
Hi
I hope this phone should have more than 6 interfaces if I'm not wrong
It should include bulk IN/OUT interfaces for data transmission
Regards
Shalini G
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Oliver
Neukum
Sent: Wednesday, November 23, 2005
Hi Greg,
Thank you for the reply.
Yeah I'm using generic usb-serial driver for our device.
Could you please tell me how can they help me in this case, this is
related to generic usb driver.
Thanks.
Shalini
-Original Message-
From: Greg KH [mailto:[EMAIL PROTECTED]
Sent: Sund
Hi Greg,
I tried with same driver and tested the scenario, what I explained in
the previous mail.
Right now I'm using linux kernel-2.6.9-5 version.
Regards,
Shalini G
-Original Message-
From: Greg KH [mailto:[EMAIL PROTECTED]
Sent: Sunday, October 30, 2005 1:17 AM
To: Shalini Ra
Hi All,
I have some clarifications on usbserial driver are as follows
First one is on usbserial module count usage.
When I'm disconnecting a device and module count is not reduced, when we
remove the device, driver invokes disconnect function and unlink all URB
related transactions other than
Hi Savitha,
Even I faced same problem while disconnecting the device and what Mr
Alan said is absolutely fine and we should follow the same.
But, before freeing the device structure, make sure that open count is
initialized to 0 and whether this particular device is opened, if so you
need to fre
Hi Savitha,
Which version of Kernel are you using?
If you are facing problem while disconnecting, please check disconnect
function what all data structure you need to clear after disconnecting
the device that would solve your problem.
It may be clearing data structure is not happening at the ri
Hi Greg,
I'm facing two problems regarding power ON/OFF problem which are
mentioned below:
Case 1:
I'm using RHEL4 with usbserial driver for my application and here I'm
facing problem while doing power ON/OFF problem. It works fine upto 10
times after that I'm getting problem in usb_dump_endpo
Hi Bastien
Thank you your suggestions.
Regards,
Shalini G
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of
Bastien Nocera
Sent: Sunday, September 25, 2005 5:50 PM
To: [EMAIL PROTECTED]
Cc: linux-usb-devel@lists.sourceforge.net
Subject: [linux-usb-devel]
Hi,
Since 3 months we have been using RHEL4 and recently we have upgraded to
RHEL 4 Update1 with kernel 2.6.9-11. We are working on USB mobiles and
tried to use usb-serial module which is available. But we are facing
problem with this modules as given below.
We are using Kermit application to wri
Hello Greg,
I'm using usbserial driver to communicate with USB Mobile phones. It was
started with 2.4 kernel and now we are using Red Hat Enterprise Linux
Edition 4 with kernel version 2.6.9-5, driver functionalities are
working fine.
Now we have to upgrade to update 1 from Red Hat. We tried wit
Hello Greg,
I'm using usbserial driver to communicate with USB Mobile phones. It was
started with 2.4 kernel and now we are using Red Hat Enterprise Linux
Edition 4 with kernel version 2.6.9-5, driver functionalities are
working fine.
Now we have to upgrade to update 1 from Red Hat. We tried wi
Hi
Try to allocate urb with GFP_KERNEL
Urb = usb_alloc_urb(0, GFP_KERNEL);
Regards,
Shalini
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Alan
Stern
Sent: Friday, July 22, 2005 8:40 AM
To: Subbu
Cc: linux-usb-devel@lists.sourceforge.net
Subject: R
Hi Helix,
Have you gone thru the USB spec 2.0? If you go thru it then its easy to
understand this.
Regards
Shalini
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Helix
Sent: Saturday, June 25, 2005 12:59 PM
To: linux-usb-devel@lists.sourceforge.net
Sub
Hi Greg/Lee,
On this problem one more scenario, we tried to do switch off mobile
manually without AT+CFUN=0, with this we are not getting control on file
descriptors and we are not able to reopen file descriptors.
Whereas in other case we could trap AT command and open the file
descriptor, but in
Hi Greg/Lee,
Thank you very much for the information and yesterday we also had this
thought. We are tried it working fine now.
This is one of the good solutions.
Thanks again.
Shalini.
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Greg
Lee
Se
I wanted to add one more scenario that is, device is OFF, it's charging
if we give AT+CFUN=0 command, it again disconnect the device.
Please update this with previous mail.
Tell me what could be done on this.
Regards,
Shalini
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[E
Hi Greg,
I tried Linux-2.6.11.8 and patch-2.6.12-rc3 to check USB device (mobile)
power ON/OFF. But still it is disconnecting and connecting the device
while USB device is charging.
And also I observed some of the conditions on power ON/OFF
One scenario is, if device is OFF and while charging
Title: RE: [linux-usb-devel] oops in serial_open and serial_close
Hi Flavio,
Check the major number and try to open device file "/dev/usb/ttyUSB0"
Regards
Shalini
-Original Message-
From: [EMAIL PROTECTED] on behalf of Flavio Leitner
Sent: Wed 5/4/2005 6:51 PM
To: linux-usb-
Try to give "chmod 755 /dev/ttyUSB0" and it should work.
Regards
Shalini
-Original Message-
From: Flavio Leitner [mailto:[EMAIL PROTECTED]
Sent: Wednesday, May 04, 2005 7:24 PM
To: Shalini Rao (WT01 - TELECOM SOLUTIONS)
Cc: linux-usb-devel@lists.sourceforge.net; [EMAIL PROTECTED]
Su
Hi Devid,
Thanks for the reply.
Yes, I'm using 2.4 Kernel version and I have some dependencies on that,
it's difficult to change to 2.6 kernel immediately.
Is there any alternative way to avoid this problem using 2.4 kernel?
Regards,
Shalini G
-Original Message-
From: David Brownell
Hi Dave
I tried to test same on kernel 2.6.7, but the result is same for both
2.4 and 2.6.
Thanks
Shalini G
-Original Message-
From: David Brownell [mailto:[EMAIL PROTECTED]
Sent: Tuesday, April 26, 2005 9:58 AM
To: Shalini Rao (WT01 - TELECOM SOLUTIONS)
Cc: linux-usb-devel@l
Hi,
I'm facing problem with usbserial driver.
Problem: I'm working with USB mobile and its working fine except for
Power ON and OFF functions.
The scenario is like, mobile is in charging and if it is OFF, the device
(mobile) is identified, and if we send AT Command (basic commands), we
get resp
Hi Oliver,
Please find enclosed attachment of lsusb output
Please let me know why this problem is with only USB.
Regards
Shalini
-Original Message-
From: Oliver Neukum [mailto:[EMAIL PROTECTED]
Sent: Thursday, April 14, 2005 11:34 AM
To: Shalini Rao (WT01 - TELECOM SOLUTIONS)
Cc: lin
Hi Oliver,
Response should be one time and in serial communication it works fine
and even USB it gives the same response but it's continuous. This
command is not to trigger to send stream of message. This command is
used for audio accessory requests ATMS and AFMS and indicates that the
accessory w
Hi,
I'm facing one problem with USB interface, I'm using USB modem and
trying to initialize modem with few AT commands, one among them is
AT*EALR=3,1 and response for this is "EALV: 3,1,3". Problem with this
command is response continuous and it is blocking the device
communication, I mean respons
Hi,
I'm facing one problem with USB interface, I'm using USB modem and
trying to initialize modem with few AT commands, one among them is
AT*EALR=3,1 and response for this is "EALV: 3,1,3". Problem with this
command is response continuous and it is blocking the device
communication, I mean respons
Hi Greg,
Acm driver is loaded as soon the plug/play agent detects USB device
connected to the system and it tries to claim. My problem is usbserial
driver also should get loaded as soon plug/play agents detects the USB
device, instead of user load them.
I wanted to know how to make usbserial dri
Hi Greg,
Here I have some clarifications on usbserial driver, right now it is
allowed to compile as individual modules and loaded as and when it is
needed.
Why can't we make this module as module and it should be like acm module
loaded as soon as device communication device connected to the sys
Hi
I'm facing problem of opening USB device file (/dev/usb/ttyUSB0) when
I'm not as a root.
After loading usbserial driver, I'm using application called Kermit to
test USB device communication. For that I try to open device file, and
when I'm as a root user it works fine, otherwise it says "can
Hi Jayaprakash,
In linux system, USB devices are identified by major number 180, so you
need to create device node with major no 180 and minor no (mknod usbdrv
180 0)
While registering device driver you don't have to give major as such,
you need to mention only minor number. All these informatio
Hi Pete,
When I connect USB device it gives device information like,
configuration, interface, and endpoint descriptors. I need bus, level,
and port information to map device files to particular USB port. But
this information I can see in /proc/bus/usb/devices file, same I wanted
to get it from t
Hi Greg,
I need to get with in the kernel and we use kernel 2.4 and this is to
map port and device files.
Regards,
Shalini G
-Original Message-
From: Greg KH [mailto:[EMAIL PROTECTED]
Sent: Sunday, February 27, 2005 11:07 PM
To: Shalini Rao (WT01 - TELECOM SOLUTIONS)
Cc: [EMAIL PROT
Hi Greg,
How do I get USB device info, such as bus, level and port? Is there any
way other than reading the proc (/proc/bus/usb/device)file.
Regards,
Shalini G
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Hi,
We are using an USB device with multiple interfaces with both in and out
endpoints, can you please tell us how to differentiate between them, and
how to handle them in a better way.
Regards,
Shalini G
---
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Hi,
I could not out make out anything from this
Can you please tell me with more details.
Regards
Shalini G
-Original Message-
From: Greg KH [mailto:[EMAIL PROTECTED]
Sent: Thursday, February 10, 2005 1:39 PM
To: Shalini Rao (WT01 - TELECOM SOLUTIONS)
Cc: [EMAIL PROTECTED]; linux-u
Hi Gregh,
Its great!!!
Thank very much for all who involved in this work.
Regards,
Shalini G
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Greg
KH
Sent: Thursday, February 10, 2005 3:39 PM
To: linux-usb-devel@lists.sourceforge.net
Subject: [linux
Hi,
Can you please tell me, is there any way to map between actual USB port
and device files. Its something like
port 1 ->devicefile1
port 2 ->devicefile2
port 3 ->devicefile3
etc
can you please give us some guidelines on this thru which we can able to
do this.
Thanks.
Shal
Hi,
Try to use FILL_BULK to initialize read bulk
and give size as exactly as the size of bulk in endpoint packet size.
Make sure that your read call back function is recursive it should
always keep reading from the device.
This should work,
Even I faced this problem, right now its ok.
Regards
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