From: Jean-Francois Moine <moinejf@free.fr>
To: linux-media@vger.kernel.org
Subject: Re: spca1528 device (Device 015: ID 04fc:1528 Sunplus Technology)..libv4l2: error turning on stream: Timer expired issue
Date: Mon, 5 Sep 2011 09:19:59 +0200 [thread overview]
Message-ID: <20110905091959.727346d5@tele> (raw)
In-Reply-To: <4E63D3F2.8090500@gmail.com>
On Sun, 04 Sep 2011 15:39:30 -0400
Mauricio Henriquez <buhochileno@gmail.com> wrote:
> Recently I'm trying to make work a Sunplus crappy mini HD USB camera, lsusb
> list this info related to the device:
>
> Picture Transfer Protocol (PIMA 15470)
> Bus 001 Device 015: ID 04fc:1528 Sunplus Technology Co., Ltd
>
> idVendor 0x04fc Sunplus Technology Co., Ltd
> idProduct 0x1528
> bcdDevice 1.00
> iManufacturer 1 Sunplus Co Ltd
> iProduct 2 General Image Devic
> iSerial 0
> ...
>
> Using the gspca-2.13.6 on my Fed12 (2.6.31.6-166.fc12.i686.PAE kernel), the
> device is listed as /dev/video1 and no error doing a dmesg...but trying to
> make it work, let say with xawtv, I get:
[snip]
Hi Mauricio,
The problem seems tied to the alternate setting. It must be the #3
while the lastest versions of gspca compute a "best" one. May you apply
the following patch to gspca-2.13.6?
----------------------8<----------------------
--- build/spca1528.c.orig 2011-09-05 08:41:54.000000000 +0200
+++ build/spca1528.c 2011-09-05 08:53:51.000000000 +0200
@@ -307,8 +307,6 @@
sd->color = COLOR_DEF;
sd->sharpness = SHARPNESS_DEF;
- gspca_dev->nbalt = 4; /* use alternate setting 3 */
-
return 0;
}
@@ -349,6 +347,9 @@
reg_r(gspca_dev, 0x25, 0x0004, 1);
reg_wb(gspca_dev, 0x27, 0x0000, 0x0000, 0x06);
reg_r(gspca_dev, 0x27, 0x0000, 1);
+
+ gspca_dev->alt = 4; /* use alternate setting 3 */
+
return gspca_dev->usb_err;
}
----------------------8<----------------------
(Theodore, this webcam may work in mass storage mode with ID 04fc:0171.
In webcam mode with ID 04fc:1528, it offers 3 interfaces: interface 0
contains only an interrupt endpoint, interface 1 is the webcam with
only isochronous endpoints and interface 2 contains bulk in, bulk out
and interrupt in endpoints - I don't know how to use the interfaces 0
and 2, but sure the interface 2 could be used to access the camera
images)
--
Ken ar c'hentañ | ** Breizh ha Linux atav! **
Jef | http://moinejf.free.fr/
next prev parent reply other threads:[~2011-09-05 7:19 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-04 19:39 spca1528 device (Device 015: ID 04fc:1528 Sunplus Technology)..libv4l2: error turning on stream: Timer expired issue Mauricio Henriquez
2011-09-05 2:07 ` Theodore Kilgore
2011-09-05 15:20 ` Mauricio Henriquez
2011-09-05 7:19 ` Jean-Francois Moine [this message]
2011-09-05 15:33 ` Mauricio Henriquez
2011-09-05 17:15 ` Jean-Francois Moine
2011-09-05 20:10 ` Mauricio Henriquez
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