Huawei E220 and usb storage

Huawei E220 and usb storage

[Norbert Preining]

Dear all,

I recently got an Huawei E220 usb modem. Reading a bit on the net I
found that:

  The Huaweii E220 modem is a composite USB device: in fact it acts like a
  mass storage device, and also as three serial communication ports. The
  Linux's developers dealt with this ignoring the mass device storage
  (which is a read-only mass storage, i.e. a CD-ROM with preload software
  only for Windows). For more information see 
  http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.20-rc2  or
  http://lwn.net/Articles/220545/  where you read the changelog for 2.6.20
  linux kernel. The interesting part is reported here below:

  [...]
  Johann Wilhelm (2): usb-storage: Ignore the virtual cd-drive of the
  Huawei E220 USB Modem usb-gsm-driver: Added VendorId and ProductId for
  Huawei E220 USB Modem
  [...]

  This modification is present from Linux kernel 2.6.20 and more recent
  ones. 

See: http://ske.sourceforge.net/html/projects/huawei/huawei_tre.html

Now that I plug my modem I definitely get this usb storage device, and I
need to call a special program to switch to the other mode
(huaweiAktBbo, from 
http://www.kanoistika.sk/bobovsky/archiv/umts/huaweiAktBbo.c).

Several pages on the web state that it should work *without* this switch
program.

Is this a regression from 2.6.20, or is it supposed to work?

Thanks a lot and all the best

Norbert

-------------------------------------------------------------------------------
Dr. Norbert Preining <preining@logic.at>        Vienna University of Technology
Debian Developer <preining@debian.org>                         Debian TeX Group
gpg DSA: 0x09C5B094      fp: 14DF 2E6C 0307 BE6D AD76  A9C0 D2BF 4AA3 09C5 B094
-------------------------------------------------------------------------------
DEAL (n.)
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			--- Douglas Adams, The Meaning of Liff

Re: Huawei E220 and usb storage

[Norbert Preining]

Hi Kristoffer,

thanks for the feedback.

On Di, 30 Okt 2007, Kristoffer Ericson wrote:
> Im using a Huawei E220 USB modem, currently running 2.6.22.5 vanilla kernel. It has worked fine for me since 2.6.21.

Strange. I rebuilt the kernel, compiled the usb serial and options into
the kernel, while leaving usb-storage as module. Still I have to issue
the huaweiAktBbo program to get it working/switching into the *right*
modus.

> The lights give you a hint what mode its in. Green = usb_storage, Dark-blue = MODEM_slow, bright-blue = MODEM_fast (3G).

BTW, I have seen a slightly different pattern: Green blinking from the
beginning
calling huaweiAktBbo to make the switch
still blinking green
calling the internet provider
when the connection is established (on the hardware level, not on ip
level) the modem starts blinking blue and then solid blue
turning off the ppp connection it goes into blinking blue mode

> If the light is green after reboot, I need to reboot again until it turns blue. I know this sucks, but just something I've noticed.

Probably you could use the huaweiAktBbo program for this, too.

Best wishes

Norbert

-------------------------------------------------------------------------------
Dr. Norbert Preining <preining@logic.at>        Vienna University of Technology
Debian Developer <preining@debian.org>                         Debian TeX Group
gpg DSA: 0x09C5B094      fp: 14DF 2E6C 0307 BE6D AD76  A9C0 D2BF 4AA3 09C5 B094
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HASELBURY PLUCKNETT (n.)
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revolution at the same time as Arkwright's Spinning Jenny, but which
didn't catch on in the same way.
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Re: Huawei E220 and usb storage

[Chuck Ebbert]

On 10/30/2007 04:47 PM, Norbert Preining wrote:
> Hi Kristoffer,
> 
> thanks for the feedback.
> 
> On Di, 30 Okt 2007, Kristoffer Ericson wrote:
>> Im using a Huawei E220 USB modem, currently running 2.6.22.5 vanilla kernel. It has worked fine for me since 2.6.21.
> 
> Strange. I rebuilt the kernel, compiled the usb serial and options into
> the kernel, while leaving usb-storage as module. Still I have to issue
> the huaweiAktBbo program to get it working/switching into the *right*
> modus.
> 

Did you see commit d853d872c14b9adc4adad29e56cd378b291f86e0 ?

Re: Huawei E220 and usb storage

[Norbert Preining]

[-- Attachment #1: Type: text/plain, Size: 1804 bytes --]

On Di, 30 Okt 2007, Chuck Ebbert wrote:
> Did you see commit d853d872c14b9adc4adad29e56cd378b291f86e0 ?

No, where can I see that one?

I tried the attached patch which I found on the usb list, but it didn't
work, the cdrom was still always found, and it was
connected/disconnected permanently. Currently I was at:

...
Oct 30 22:20:32 mithrandir kernel: usb 2-2: new full speed USB device using uhci_hcd and address 13
Oct 30 22:20:32 mithrandir kernel: usb 2-2: configuration #1 chosen from 1 choice
Oct 30 22:20:32 mithrandir kernel: usb-storage: probe of 2-2:1.0 failed with error -5
Oct 30 22:20:32 mithrandir kernel: option 2-2:1.0: GSM modem (1-port) converter detected
Oct 30 22:20:32 mithrandir kernel: usb 2-2: GSM modem (1-port) converter now attached to ttyUSB0
Oct 30 22:20:32 mithrandir kernel: usb-storage: probe of 2-2:1.1 failed with error -5
Oct 30 22:20:32 mithrandir kernel: option 2-2:1.1: GSM modem (1-port) converter detected
Oct 30 22:20:32 mithrandir kernel: usb 2-2: GSM modem (1-port) converter now attached to ttyUSB1
Oct 30 22:20:32 mithrandir kernel: scsi35 : SCSI emulation for USB Mass Storage devices

Note the SCSI35 !!!

So is there any other patch I can try?

Best wishes

Norbert

-------------------------------------------------------------------------------
Dr. Norbert Preining <preining@logic.at>        Vienna University of Technology
Debian Developer <preining@debian.org>                         Debian TeX Group
gpg DSA: 0x09C5B094      fp: 14DF 2E6C 0307 BE6D AD76  A9C0 D2BF 4AA3 09C5 B094
-------------------------------------------------------------------------------
BARSTIBLEY
A humorous device such as a china horse or small naked porcelain
infant which jocular hosts use of piss water into your Scotch with.
			--- Douglas Adams, The Meaning of Liff

[-- Attachment #2: activate_huawei_dev-2.6.23.patch --]
[-- Type: text/x-diff, Size: 1709 bytes --]

--- ./drivers/usb/storage/initializers.c.orig	2007-04-26 09:20:58.000000000 +0200
+++ ./drivers/usb/storage/initializers.c	2007-10-30 22:03:29.000000000 +0100
@@ -90,3 +90,14 @@
 
 	return (res ? -1 : 0);
 }
+
+/* This places the HUAWEI E220 devices in multi-port mode */
+int usb_stor_switch_ports_init(struct us_data *us)
+{
+	us->iobuf[0] = 0x1;
+	(void)usb_control_msg(us->pusb_dev, usb_sndctrlpipe(us->pusb_dev, 0),
+		USB_REQ_SET_FEATURE, USB_TYPE_STANDARD | USB_RECIP_DEVICE, 
+		0x01, 0x0, us->iobuf, 0x1, 1000);
+	return 0;
+}
+
--- ./drivers/usb/storage/initializers.h.orig	2006-12-09 15:26:06.000000000 +0100
+++ ./drivers/usb/storage/initializers.h	2007-10-30 22:03:29.000000000 +0100
@@ -47,3 +47,6 @@
 /* This function is required to activate all four slots on the UCR-61S2B
  * flash reader */
 int usb_stor_ucr61s2b_init(struct us_data *us);
+
+/* This places the HUAWEI E220 devices in multi-port mode */
+int usb_stor_switch_ports_init(struct us_data *us);
--- ./drivers/usb/storage/unusual_devs.h.orig	2007-10-30 19:40:17.000000000 +0100
+++ ./drivers/usb/storage/unusual_devs.h	2007-10-30 22:05:51.000000000 +0100
@@ -1463,6 +1463,16 @@
 		US_SC_DEVICE, US_PR_DEVICE, NULL,
 		US_FL_IGNORE_RESIDUE ),
 
+/* This tells the usb driver to place the HUAWEI E220 devices into multi-port mode
+ * Reported by fangxiaozhi <fangxiaozhi60675@huawei.com>
+ * and by linlei <linlei83@huawei.com>
+ */
+UNUSUAL_DEV( 0x12d1, 0x1003, 0x0000, 0x0000,
+                "HUAWEI",
+		"HUAWEI MOBILE Mass Storage",
+		US_SC_DEVICE, US_PR_DEVICE, usb_stor_switch_ports_init,
+		0),
+
 /* Reported by Vilius Bilinkevicius <vilisas AT xxx DOT lt) */
 UNUSUAL_DEV(  0x132b, 0x000b, 0x0001, 0x0001,
 		"Minolta",

Re: Huawei E220 and usb storage

[Norbert Preining]

On Di, 30 Okt 2007, Chuck Ebbert wrote:
> Did you see commit d853d872c14b9adc4adad29e56cd378b291f86e0 ?

2.6.23 + this commit exhibits the same problems I describe before ...
permanent disconnect/connect problems. Not even using the mentioned
program does switch the usb modem into the right mode.

So this patch seems to be bogus...

Best wishes

Norbert

-------------------------------------------------------------------------------
Dr. Norbert Preining <preining@logic.at>        Vienna University of Technology
Debian Developer <preining@debian.org>                         Debian TeX Group
gpg DSA: 0x09C5B094      fp: 14DF 2E6C 0307 BE6D AD76  A9C0 D2BF 4AA3 09C5 B094
-------------------------------------------------------------------------------
HEVER (n.)
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			--- Douglas Adams, The Meaning of Liff

Re: Huawei E220 and usb storage

[Pete Zaitcev]

On Tue, 30 Oct 2007 20:09:45 +0100, Norbert Preining <preining@logic.at> wrote:

> Is this a regression from 2.6.20, or is it supposed to work?

Please post your /proc/bus/usb/devices. Maybe it just fails to match.

-- Pete

Re: Huawei E220 and usb storage

[Norbert Preining]

On Di, 30 Okt 2007, Pete Zaitcev wrote:
> Please post your /proc/bus/usb/devices. Maybe it just fails to match.

Here is the relevant part:
T:  Bus=02 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 25 Spd=12  MxCh= 0
D:  Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=12d1 ProdID=1003 Rev= 0.00
S:  Manufacturer=HUAWEI Technologies
S:  Product=HUAWEI Mobile
C:* #Ifs= 1 Cfg#= 1 Atr=a0 MxPwr=500mA
I:* If#= 0 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage
E:  Ad=83(I) Atr=02(Bulk) MxPS=  64 Ivl=0ms
E:  Ad=04(O) Atr=02(Bulk) MxPS=  64 Ivl=0ms

The VendorID and ProductID do match, the strings seem to be different
(HUAWEI MOBILE in the patch, in the usb/devices "HUAWEI Mobile")., but I
don't know what counts here.

Best wishes

Norbert

-------------------------------------------------------------------------------
Dr. Norbert Preining <preining@logic.at>        Vienna University of Technology
Debian Developer <preining@debian.org>                         Debian TeX Group
gpg DSA: 0x09C5B094      fp: 14DF 2E6C 0307 BE6D AD76  A9C0 D2BF 4AA3 09C5 B094
-------------------------------------------------------------------------------
TINGRITH (n.)
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Re: Huawei E220 and usb storage

[Pete Zaitcev]

On Tue, 30 Oct 2007 22:22:13 +0100, Norbert Preining <preining@logic.at> wrote:

> I tried the attached patch which I found on the usb list, but it didn't
> work, the cdrom was still always found, and it was
> connected/disconnected permanently.

The difference with huaweiAktBbo.c seems that kernel uses a nonzero length.
Can you try zero length with the kernel? It's the second argument to the last.

-- Pete

Re: Huawei E220 and usb storage

[Kristoffer Ericson]

Greetings,

Im using a Huawei E220 USB modem, currently running 2.6.22.5 vanilla kernel. It has worked fine for me since 2.6.21.
The lights give you a hint what mode its in. Green = usb_storage, Dark-blue = MODEM_slow, bright-blue = MODEM_fast (3G).

If the light is green after reboot, I need to reboot again until it turns blue. I know this sucks, but just something I've noticed.

One hint is to put the USB modem as static in kernel and usb_storage as module.

Best wishes
Kristoffer Ericson


On Tue, 30 Oct 2007 20:09:45 +0100
Norbert Preining <preining@logic.at> wrote:

> Dear all,
> 
> I recently got an Huawei E220 usb modem. Reading a bit on the net I
> found that:
> 
>   The Huaweii E220 modem is a composite USB device: in fact it acts like a
>   mass storage device, and also as three serial communication ports. The
>   Linux's developers dealt with this ignoring the mass device storage
>   (which is a read-only mass storage, i.e. a CD-ROM with preload software
>   only for Windows). For more information see 
>   http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.20-rc2  or
>   http://lwn.net/Articles/220545/  where you read the changelog for 2.6.20
>   linux kernel. The interesting part is reported here below:
> 
>   [...]
>   Johann Wilhelm (2): usb-storage: Ignore the virtual cd-drive of the
>   Huawei E220 USB Modem usb-gsm-driver: Added VendorId and ProductId for
>   Huawei E220 USB Modem
>   [...]
> 
>   This modification is present from Linux kernel 2.6.20 and more recent
>   ones. 
> 
> See: http://ske.sourceforge.net/html/projects/huawei/huawei_tre.html
> 
> Now that I plug my modem I definitely get this usb storage device, and I
> need to call a special program to switch to the other mode
> (huaweiAktBbo, from 
> http://www.kanoistika.sk/bobovsky/archiv/umts/huaweiAktBbo.c).
> 
> Several pages on the web state that it should work *without* this switch
> program.
> 
> Is this a regression from 2.6.20, or is it supposed to work?
> 
> Thanks a lot and all the best
> 
> Norbert
> 
> -------------------------------------------------------------------------------
> Dr. Norbert Preining <preining@logic.at>        Vienna University of Technology
> Debian Developer <preining@debian.org>                         Debian TeX Group
> gpg DSA: 0x09C5B094      fp: 14DF 2E6C 0307 BE6D AD76  A9C0 D2BF 4AA3 09C5 B094
> -------------------------------------------------------------------------------
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> 			--- Douglas Adams, The Meaning of Liff
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Re: Huawei E220 and usb storage

[Norbert Preining]

On Di, 30 Okt 2007, Pete Zaitcev wrote:
> The difference with huaweiAktBbo.c seems that kernel uses a nonzero length.
> Can you try zero length with the kernel? It's the second argument to the last.

I tried with the git patch plus changing the penultimage argument from
0x1 to 0.

The switch of the modem is still not done automatically, but calling
huaweiAktBbo does effect the switch.

In my tests I did NOT reboot since usb-storage was compiled as module
(usbserial and option fix in the kernel). But I made sure that I loaded
the right (the module with the patched code) after removing the old one.

Best wishes

Norbert

-------------------------------------------------------------------------------
Dr. Norbert Preining <preining@logic.at>        Vienna University of Technology
Debian Developer <preining@debian.org>                         Debian TeX Group
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Re: Huawei E220 and usb storage

[Norbert Preining]

On Mi, 31 Okt 2007, preining wrote:
> On Di, 30 Okt 2007, Pete Zaitcev wrote:
> > The difference with huaweiAktBbo.c seems that kernel uses a nonzero length.
> > Can you try zero length with the kernel? It's the second argument to the last.
> 
> I tried with the git patch plus changing the penultimage argument from
> 0x1 to 0.

Hmm, in addition I added a
	printk(KERN_ERR "ENTERING usb_stor_huawei_e220_init!\n");
at the beginning of the function but it never showed up in my log files.
So it seems that the UNUSUAL_DEV entry does not match.

Best wishes

Norbert

-------------------------------------------------------------------------------
Dr. Norbert Preining <preining@logic.at>        Vienna University of Technology
Debian Developer <preining@debian.org>                         Debian TeX Group
gpg DSA: 0x09C5B094      fp: 14DF 2E6C 0307 BE6D AD76  A9C0 D2BF 4AA3 09C5 B094
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Re: Huawei E220 and usb storage

[Pete Zaitcev]

On Wed, 31 Oct 2007 07:23:56 +0100, Norbert Preining <preining@logic.at> wrote:

> Hmm, in addition I added a
> 	printk(KERN_ERR "ENTERING usb_stor_huawei_e220_init!\n");
> at the beginning of the function but it never showed up in my log files.
> So it seems that the UNUSUAL_DEV entry does not match.

This doesn't seem to be possible, considering the /proc/bus/usb/devices
that you posted. I would rather suspect that you forgot to perform
some step in your kernel installation, and end using a stale
usb-storage module.

-- Pete

Re: Huawei E220 and usb storage

[Kristoffer Ericson]

On Tue, 30 Oct 2007 21:47:20 +0100
Norbert Preining <preining@logic.at> wrote:

> Hi Kristoffer,
> 
> thanks for the feedback.
> 
> On Di, 30 Okt 2007, Kristoffer Ericson wrote:
> > Im using a Huawei E220 USB modem, currently running 2.6.22.5 vanilla kernel. It has worked fine for me since 2.6.21.
> 
> Strange. I rebuilt the kernel, compiled the usb serial and options into
> the kernel, while leaving usb-storage as module. Still I have to issue
> the huaweiAktBbo program to get it working/switching into the *right*
> modus.
> 
> > The lights give you a hint what mode its in. Green = usb_storage, Dark-blue = MODEM_slow, bright-blue = MODEM_fast (3G).
> 
> BTW, I have seen a slightly different pattern: Green blinking from the
> beginning
I get green blinking up to udev, then it turns into dark blue.

> calling huaweiAktBbo to make the switch
> still blinking green
> calling the internet provider
> when the connection is established (on the hardware level, not on ip
> level) the modem starts blinking blue and then solid blue
> turning off the ppp connection it goes into blinking blue mode
> 
I have no experience with huewaiAktBbo, I just use wvdial, works nicely.
Solid color also symbolises "Established mode" for me.

> > If the light is green after reboot, I need to reboot again until it turns blue. I know this sucks, but just something I've noticed.
> 
> Probably you could use the huaweiAktBbo program for this, too.
> 
I've noticed that it depends on the USB host somehow. On my laptop I need to restart 3 times before it will go into "blue mode" properly. On my primary PC though, it always works right away. No idea why and haven't had the time to bugtrack it.

> Best wishes
> 
> Norbert
> 
> -------------------------------------------------------------------------------
> Dr. Norbert Preining <preining@logic.at>        Vienna University of Technology
> Debian Developer <preining@debian.org>                         Debian TeX Group
> gpg DSA: 0x09C5B094      fp: 14DF 2E6C 0307 BE6D AD76  A9C0 D2BF 4AA3 09C5 B094
> -------------------------------------------------------------------------------
> HASELBURY PLUCKNETT (n.)
> A mechanical device for cleaning combs invented during the industrial
> revolution at the same time as Arkwright's Spinning Jenny, but which
> didn't catch on in the same way.
> 			--- Douglas Adams, The Meaning of Liff

Re: Huawei E220 and usb storage

[Norbert Preining]

On Di, 30 Okt 2007, Pete Zaitcev wrote:
> This doesn't seem to be possible, considering the /proc/bus/usb/devices
> that you posted. I would rather suspect that you forgot to perform
> some step in your kernel installation, and end using a stale
> usb-storage module.

No.

$ uname -r
2.6.23
$ cd /lib/modules/2.6.23
$ find . -name usb-storage.ko
./kernel/drivers/usb/storage/usb-storage.ko
$ strings ./kernel/drivers/usb/storage/usb-storage.ko | grep -i huawei_e22a
<3>ENTERING usb_stor_huawei_e220_init!
$

So it is there ... and it is the only module.


Best wishes

Norbert

-------------------------------------------------------------------------------
Dr. Norbert Preining <preining@logic.at>        Vienna University of Technology
Debian Developer <preining@debian.org>                         Debian TeX Group
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Re: Huawei E220 and usb storage

[Norbert Preining]

On Di, 30 Okt 2007, Pete Zaitcev wrote:
> > 	printk(KERN_ERR "ENTERING usb_stor_huawei_e220_init!\n");
> > at the beginning of the function but it never showed up in my log files.
> > So it seems that the UNUSUAL_DEV entry does not match.
> 
> This doesn't seem to be possible, considering the /proc/bus/usb/devices
> that you posted. I would rather suspect that you forgot to perform

Compiling both -- usb-storage and option/usb-serial -- as modules did
work.

Ok, thanks a lot.

I assume that is because the built-in usb-serial/option did grab the
device so the init function wasn't executed. Putting both into modules
allowed that usb-storage grabbed the device first.

Anyway, my interpretation without any knowledge.

Best wishes

Norbert

-------------------------------------------------------------------------------
Dr. Norbert Preining <preining@logic.at>        Vienna University of Technology
Debian Developer <preining@debian.org>                         Debian TeX Group
gpg DSA: 0x09C5B094      fp: 14DF 2E6C 0307 BE6D AD76  A9C0 D2BF 4AA3 09C5 B094
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Re: Huawei E220 and usb storage

[Norbert Preining]

Dear Pete, dear all,

On Mi, 31 Okt 2007, preining wrote:
> On Di, 30 Okt 2007, Pete Zaitcev wrote:
> > The difference with huaweiAktBbo.c seems that kernel uses a nonzero length.
> > Can you try zero length with the kernel? It's the second argument to the last.
> 
> I tried with the git patch plus changing the penultimage argument from
> 0x1 to 0.

Ok, did new tests with 2.6.24-rc2:
- with plain kernel the usb-storage modules attaches and detaches
  permanently a virtual cd drive, I stopped after 30+ iterations.

- changing the penultimage argument in the usb_stor_huawei_e220_init
  function from 0x1 to 0 stopped this misbehaviour, but

- with the change from 0x1 to 0 the initialization works automatically.

Can we place change this 0x1 to 0?

Best wishes

Norbert

-------------------------------------------------------------------------------
Dr. Norbert Preining <preining@logic.at>        Vienna University of Technology
Debian Developer <preining@debian.org>                         Debian TeX Group
gpg DSA: 0x09C5B094      fp: 14DF 2E6C 0307 BE6D AD76  A9C0 D2BF 4AA3 09C5 B094
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MOLESBY (n.)
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with all the windows closed, reading the Sunday Express and wearing
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Re: Huawei E220 and usb storage

[Pete Zaitcev]

On Fri, 16 Nov 2007 14:22:56 +0100, Norbert Preining <preining@logic.at> wrote:

> > > The difference with huaweiAktBbo.c seems that kernel uses a nonzero length.
> > > Can you try zero length with the kernel? It's the second argument to the last.
> > 
> > I tried with the git patch plus changing the penultimage argument from
> > 0x1 to 0.
> 
> Ok, did new tests with 2.6.24-rc2:
> - with plain kernel the usb-storage modules attaches and detaches
>   permanently a virtual cd drive, I stopped after 30+ iterations.

It looks like between Dave Russel and I, we hit the same problem
that you did, after taking care of detection and initialization.
Look at his dmesg in comment #44 in this:
 https://bugzilla.redhat.com/show_bug.cgi?id=253096#c44

> - changing the penultimage argument in the usb_stor_huawei_e220_init
>   function from 0x1 to 0 stopped this misbehaviour, but
> 
> - with the change from 0x1 to 0 the initialization works automatically.

I may be able to test this.

As you recall, Huawei people themselves suggested nonzero length,
this is why we didn't want to change it. But perhaps they are
mistaken about the operation of their own hardware. Stranger
things happened...

-- Pete

Re: Huawei E220 and usb storage

[Norbert Preining]

On Do, 14 Feb 2008, Pete Zaitcev wrote:
> that you did, after taking care of detection and initialization.
> Look at his dmesg in comment #44 in this:

Yes, that looks very similar.

> > - changing the penultimage argument in the usb_stor_huawei_e220_init
> >   function from 0x1 to 0 stopped this misbehaviour, but
> > 
> > - with the change from 0x1 to 0 the initialization works automatically.
> 
> I may be able to test this.

I test it regularly, last with 2.6.25-rc1, and it works, always. Maybe
it is not the optimal solution, but who knows.

> As you recall, Huawei people themselves suggested nonzero length,

Umpf, ahhaaaa, very interesting.

Best wishes

Norbert

-------------------------------------------------------------------------------
Dr. Norbert Preining <preining@logic.at>        Vienna University of Technology
Debian Developer <preining@debian.org>                         Debian TeX Group
gpg DSA: 0x09C5B094      fp: 14DF 2E6C 0307 BE6D AD76  A9C0 D2BF 4AA3 09C5 B094
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Serious error.
All shortcuts have disappeared.
Screen.
Mind.
Both are blank.
                       --- Windows Error Haiku

Re: Huawei E220 and usb storage

[Pete Zaitcev]

On Wed, 20 Feb 2008 07:57:23 +0100, Norbert Preining <preining@logic.at> wrote:

> > that you did, after taking care of detection and initialization.
> > Look at his dmesg in comment #44 in this:
> 
> Yes, that looks very similar.

Someone reported on the bug that a firmware update exists to resolve
the issue (version 11.117.07.00.67). Probably they started to comply
with the spec and return 12 bytes of sense according to the allocation
length in the SCSI command.
  https://bugzilla.redhat.com/show_bug.cgi?id=253096#c51

-- Pete

Re: Huawei E220 and usb storage

[Norbert Preining]

On Mo, 25 Feb 2008, Pete Zaitcev wrote:
> Someone reported on the bug that a firmware update exists to resolve
> the issue (version 11.117.07.00.67). Probably they started to comply

But where do I get this firmware update? I searched the huawei web site,
registered, bid couldn't find anything... any hints?

Best wishes

Norbert

-------------------------------------------------------------------------------
Dr. Norbert Preining <preining@logic.at>        Vienna University of Technology
Debian Developer <preining@debian.org>                         Debian TeX Group
gpg DSA: 0x09C5B094      fp: 14DF 2E6C 0307 BE6D AD76  A9C0 D2BF 4AA3 09C5 B094
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GRIMMET (n.)
A small bush from which cartoon characters dangle over the edge of a
cliff.
			--- Douglas Adams, The Meaning of Liff

Re: Huawei E220 and usb storage

[maximilian attems]

> Ok, did new tests with 2.6.24-rc2:
> - with plain kernel the usb-storage modules attaches and detaches
>   permanently a virtual cd drive, I stopped after 30+ iterations.

afais this is caused by hal.
when i stop hal this bouncy behaviour stops.

also it doesn't happen if you put your huawei on before boot.