Date: Wed, 26 Jan 2011 11:14:21 -0500 From: Andrew Gallatin <gallatin@gmail.com> To: Hans Petter Selasky <hselasky@c2i.net> Cc: freebsd-multimedia@freebsd.org Subject: Re: webcamd: PCTV 801eSE Message-ID: <AANLkTi=776r2hRb_dw2vVPz1roV5bgikSqp=XYQy6Gfk@mail.gmail.com> In-Reply-To: <201101260901.19745.hselasky@c2i.net> References: <AANLkTinh7mA5jrr1240LnOSGL37yzb2uW_yWZfBD5cpa@mail.gmail.com> <201101260901.19745.hselasky@c2i.net>
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[-- Attachment #1 --]
On Wed, Jan 26, 2011 at 3:01 AM, Hans Petter Selasky <hselasky@c2i.net> wrote:
> Try to check the USB buffer size:
>
> #define DIB0700_DEFAULT_STREAMING_CONFIG(ep) \
That seems to have been it! I used the attached patch, and now the
picture is clear from stations 100km away, where it was unusable on
stations 25km away before.
Is there some difference between the Linux & FreeBSD USB systems that
Linux is able to handle non-512 byte multiples?
I still have the occasional error messages:
xc5000: waiting for firmware upload (dvb-fe-xc5000-1.6.114.fw)...
Loading firmware at '/boot/modules/dvb-fe-xc5000-1.6.114.fw', f=7
xc5000: firmware read Zu bytes.
xc5000: firmware uploading...
xc5000: firmware upload complete...
dib0700: i2c write error (status = -32)
s5h1411_readreg: readreg error (ret == 0)
dib0700: i2c write error (status = -32)
s5h1411_readreg: readreg error (ret == 0)
xc5000: waiting for firmware upload (dvb-fe-xc5000-1.6.114.fw)...
Loading firmware at '/boot/modules/dvb-fe-xc5000-1.6.114.fw', f=7
xc5000: firmware read Zu bytes.
xc5000: firmware uploading...
xc5000: firmware upload complete...
dib0700: i2c write error (status = -32)
s5h1411_readreg: readreg error (ret == 0)
dib0700: i2c write error (status = -32)
s5h1411_readreg: readreg error (ret == 0)
<...>
Should I be concerned?
Thank you,
Drew
[-- Attachment #2 --]
--- ./v4l-dvb-abd3aac6644e/linux/drivers/media/dvb/dvb-usb/dib0700_devices.c 2011-01-26 10:42:50.483435283 -0500
+++ /home/gallatin/dvb/v4l-dvb/linux/drivers/media/dvb/dvb-usb/dib0700_devices.c 2010-07-02 12:03:51.572560888 -0400
@@ -2113,7 +2113,7 @@ MODULE_DEVICE_TABLE(usb, dib0700_usb_id_
.endpoint = ep, \
.u = { \
.bulk = { \
- .buffersize = 512*78, \
+ .buffersize = 39480, \
} \
} \
}
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