Re: [HPLIP-Devel] big-endian troubles scanning?

Aaron J Albright Tue, 24 Oct 2006 07:38:33 -0700

Russell,

David--the engineer you are working with is unavailable this week. But he will be back early next week.


Sorry for the delay.

Aaron

Russell Krayer wrote:

From: "Russell Krayer" <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED], [EMAIL PROTECTED]
CC: hplip-devel@lists.sourceforge.net
Subject: Re: [HPLIP-Devel] big-endian troubles scanning?
Date: Mon, 23 Oct 2006 21:06:54 -0400

From: "Russell Krayer" <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
CC: hplip-devel@lists.sourceforge.net
Subject: Re: [HPLIP-Devel] big-endian troubles scanning?
Date: Thu, 19 Oct 2006 20:23:04 -0400

From: "Russell Krayer" <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
CC: hplip-devel@lists.sourceforge.net
Subject: Re: [HPLIP-Devel] big-endian troubles scanning?
Date: Thu, 19 Oct 2006 20:15:02 -0400

From: "Suffield, David" <[EMAIL PROTECTED]>
To: "Russell Krayer" <[EMAIL PROTECTED]>
CC: <hplip-devel@lists.sourceforge.net>
Subject: RE: [HPLIP-Devel] big-endian troubles scanning?
Date: Thu, 19 Oct 2006 13:45:57 -0500

We have actually reproduced your problem on a powerpc running Ubuntu
(dapper). We get the same kernel message "(hpiod) did not claim
interface 0 before use". Same symtoms - prints ok, but scanning fails.
Dapper is running libusb 0.1.10a.

I should have mentioned my libusb is 0.1.12

Like I said before libusb is not claiming the interface as expected.

For

our test we used a OJ 7400 and for that device hpiod will claim
interface #1 which is the 7/1/2 interface. Hpiod does not use

interface

#0.

We going to test with Ubuntu Breezy since that was our last known
big-endian test setup that worked.

So I rebuilt my kernel with debugfs and usbmon and captured the activity on the two boxes I have. I'm pretty sure we're seeing byte-swapping issues. I stripped out the times and extra junk to show the differences more easily side by side with xxdiff.


First here is from the broken box on powerpc:

S Ci00 s 80 06 0300 0000 00ff 255 <
C Ci00 0 4 = 04030904
S Ci00 s 80 06 0302 0409 00ff 255 <

C Ci00 0 32 = 20035000 53004300 20003200 32003000 30002000 53006500 72006900 65007300

S Ci00 s 80 06 0300 0000 00ff 255 <
C Ci00 0 4 = 04030904
S Ci00 s 80 06 0303 0409 00ff 255 <
C Ci00 0 26 = 1a034d00 59003300 32004700 46003400 30005a00 4b003000 4700
S Ci00 s 80 06 0300 0000 00ff 255 <
C Ci00 0 4 = 04030904
S Ci00 s 80 06 0302 0409 00ff 255 <

C Ci00 0 32 = 20035000 53004300 20003200 32003000 30002000 53006500 72006900 65007300

S Ci00 s 80 06 0300 0000 00ff 255 <
C Ci00 0 4 = 04030904
S Ci00 s 80 06 0303 0409 00ff 255 <
C Ci00 0 26 = 1a034d00 59003300 32004700 46003400 30005a00 4b003000 4700
S Co00 s 01 0b 0000 0001 0000 0
C Co00 0 0
S Co00 s 01 0b 0000 0001 0000 0
C Co00 0 0
S Ci00 s a1 00 0000 0100 0400 1024 <

C Ci00 0 158 = 009e4d46 473a4865 776c6574 742d5061 636b6172 643b4d44 4c3a5053 43203232

S Ci00 s a1 00 0000 0100 0400 1024 <

C Ci00 0 158 = 009e4d46 473a4865 776c6574 742d5061 636b6172 643b4d44 4c3a5053 43203232

S Ci00 s c1 00 4d00 0100 0001 1 <
C Ci00 0 1 = 00
S Bi03 -115 8192 <
C Bi03 0 0
S Bo03 -115 8 = 00000008 00000003
C Bo03 0 8 >
S Bi03 -115 8192 <
C Bi03 0 0
S Bi03 -115 8192 <
C Bi03 0 0


And here is from a working AMD64 box:

S Ci00 s 80 06 0300 0000 00ff 255 <
C Ci00 0 4 = 04030904
S Ci00 s 80 06 0302 0409 00ff 255 <

C Ci00 0 32 = 20035000 53004300 20003200 32003000 30002000 53006500 72006900 65007300

S Ci00 s 80 06 0300 0000 00ff 255 <
C Ci00 0 4 = 04030904
S Ci00 s 80 06 0303 0409 00ff 255 <
C Ci00 0 26 = 1a034d00 59003300 32004700 46003400 30005a00 4b003000 4700
S Ci00 s 80 06 0300 0000 00ff 255 <
C Ci00 0 4 = 04030904
S Ci00 s 80 06 0302 0409 00ff 255 <

C Ci00 0 32 = 20035000 53004300 20003200 32003000 30002000 53006500 72006900 65007300

S Ci00 s 80 06 0300 0000 00ff 255 <
C Ci00 0 4 = 04030904
S Ci00 s 80 06 0303 0409 00ff 255 <
C Ci00 0 26 = 1a034d00 59003300 32004700 46003400 30005a00 4b003000 4700
S Co00 s 01 0b 0000 0001 0000 0
C Co00 0 0
S Co00 s 01 0b 0000 0001 0000 0
C Co00 0 0
S Ci00 s a1 00 0000 0001 0400 1024 <

C Ci00 0 158 = 009e4d46 473a4865 776c6574 742d5061 636b6172 643b4d44 4c3a5053 43203232

S Ci00 s a1 00 0000 0001 0400 1024 <

C Ci00 0 158 = 009e4d46 473a4865 776c6574 742d5061 636b6172 643b4d44 4c3a5053 43203232

S Ci00 s c1 00 004d 0001 0001 1 <
C Ci00 0 1 = 4d
S Bi03 -115 8192 <
C Bi03 0 0
S Bo03 -115 8 = 00000008 00000003
C Bo03 0 8 >
S Bi03 -115 8192 <
C Bi03 0 6 = 00000009 0000
S Bi03 -115 8192 <
C Bi03 0 3 = 800003
S Bo03 -115 13 = 0000000d 00000704 20002000 00
C Bo03 0 13 >
S Bi03 -115 8192 <
C Bi03 0 6 = 0000000d 0000
S Bi03 -115 8192 <
C Bi03 0 7 = 87000044 200000
S Bo03 -115 11 = 0000000b 00000104 040000
C Bo03 0 11 >
S Bi03 -115 8192 <
C Bi03 0 6 = 0000000a 0000
S Bi03 -115 8192 <
C Bi03 0 4 = 81000000
S Bo03 -115 13 = 0000000d 00000701 20002000 00
C Bo03 0 13 >
S Bi03 -115 8192 <
C Bi03 0 6 = 0000000d 0000


The differences start at line 21.


Regards,
Russ Krayer



I think the first Bo line like this:

S Bo03 -115 8 = 00000008 00000003

is the MLCInit with length 8 and rev 3 so the troubles seem to start before that, as you suspected.



Russ Krayer



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Re: [HPLIP-Devel] big-endian troubles scanning?

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