[HOW-TO] Upside-down image from UVC webcam

[arjos85]

Excuse me I didn't mention it in the HOW-TO...
just for now ADD A BLANK LINE AT THE END OF EACH PATCH before applying it!!

[neandertal]

I couldn't find any blank line so I tried to insert one but it didn't work.I am not very good with this patching stuff. I then decided to copy the line of code line by line to the uvc_vido.c (with removing all the + signs) and it worked!!!
I still have to check stability and quality but the webcam image is no longer up side down. Thank you so much Arjos. Very good job.

[arjos85]

I couldn't find any blank line so I tried to insert one but it didn't work.

You are right...it's not possible to add a blank line at the end of a of a quote/code test.

I am not very good with this patching stuff. I then decided to copy the line of code line by line to the uvc_vido.c (with removing all the + signs) and it worked!!!
I still have to check stability and quality but the webcam image is no longer up side down. Thank you so much Arjos. Very good job.

GREAT!!!
I m very happy my patch works also for you!!
Which patch have you tried?

However it should be a good thing if you try also the other 3 patches!!
Now you can simply donwload them in the Trunk folder because I've attached them at the end of the HOW-TO...
then with the shell go to inside the Trunk folder and do:

patch < the_patch_you_want

Please let me know about the performance of the all 4 patches!!
Thank you very much!!

Ciao ciao
Arjos

[napalm brain]

So if you don't have a proprietary driver, this is worthless? I also have an inverted webcam but I've had absolutely not luck correcting the problem. I have an UVC webcam but yeah.

[arjos85]

So if you don't have a proprietary driver, this is worthless? I also have an inverted webcam but I've had absolutely not luck correcting the problem. I have an UVC webcam but yeah.

Excuse me , I'm Italian and I'm not very good in English!! :S
What are you talking about when you said "this is worthless"?
I don't have a proprietary driver in the sense that it is not a SONIX driver (since my webcam is a SONIX one), but I'm using an open source driver: UVCVIDEO.
You said you also have an UVC webcam mounted upside-down...
have you tried one of my 4 solutions?
What do you need? Can I help you in some way?

Let me know...and please try to be more clear you can...
thank you.

Excuse me for my English!!

arjos

[arjos85]

Perfect job!
Thank you, Marko!
Not mirrored image, not upside-down, with good quality!
I am very happi with it patch!

Thank you!

Ehy Brazilio,
I've just find out you have talked about this how-to at bugs.launchpad.net ...
thank you very much...
it is very important for the linux/opensource community to disseminate information like that!!
also if it is not a real kernel/driver bug, you have helped all those people who think it is and go to bugs.launchpad.net!!

good job!!

[napalm brain]

Excuse me , I'm Italian and I'm not very good in English!! :S
What are you talking about when you said "this is worthless"?
I don't have a proprietary driver in the sense that it is not a SONIX driver (since my webcam is a SONIX one), but I'm using an open source driver: UVCVIDEO.
You said you also have an UVC webcam mounted upside-down...
have you tried one of my 4 solutions?
What do you need? Can I help you in some way?

Let me know...and please try to be more clear you can...
thank you.

Excuse me for my English!!

arjos

Ah, sorry. I was worried about that being misconstrued. I meant, I can't use your tutorial if I don't have a proprietary driver? It would be unfortunate but this would be the way to solve the issue. Although, yes I do have a UVC webcam also. Oddly enough, when I restart, sometimes, the webcam is fine. A bit unpredictable but if I can't use this, I will live.

[arjos85]

Ah, sorry. I was worried about that being misconstrued. I meant, I can't use your tutorial if I don't have a proprietary driver? It would be unfortunate but this would be the way to solve the issue. Although, yes I do have a UVC webcam also. Oddly enough, when I restart, sometimes, the webcam is fine. A bit unpredictable but if I can't use this, I will live.

If I understood well...you have two webcams, the former is NOT uvc capable the latter is uvc capable.
Is it right?
Well...for the first one you have to look for some other solution...I don't know if the vendor released driver for you webcam, just try to look for it in the vendor website. Maybe someone of the opensource community has developed a driver for your webcam.

Please can you tell me the model of your webcams?

Thank you very much!!

ps.
where are you writing from?

[leo_ietres]

Ok, I corroborate that the first patch works perfectly on the PACKARD BELL BG45-P-025 laptop.

here is the lsusb command on my laptop for users that could have the same one:

leonardo@leo-portatil:~$ lsusb
Bus 007 Device 002: ID 04f2:b012 Chicony Electronics Co., Ltd
Bus 007 Device 001: ID 0000:0000
Bus 003 Device 002: ID 0bda:0158 Realtek Semiconductor Corp.
Bus 003 Device 001: ID 0000:0000
Bus 006 Device 001: ID 0000:0000
Bus 005 Device 001: ID 0000:0000
Bus 004 Device 002: ID 046d:c03f Logitech, Inc. UltraX Optical Mouse
Bus 004 Device 001: ID 0000:0000
Bus 002 Device 001: ID 0000:0000
Bus 001 Device 001: ID 0000:0000

[arjos85]

Hi leo_ietres,

Ok, I corroborate that the first patch works perfectly on the PACKARD BELL BG45-P-025 laptop.

leonardo@leo-portatil:~$ lsusb
Bus 007 Device 002: ID 04f2:b012 Chicony Electronics Co., Ltd

Why don't you try also the second patch?
It should be more stable and faster!!

Thank you for having tried my patch!!
Enjoy your webcam!!

Ciao ciao