Yan Seiner wrote:
Yan Seiner wrote:
Andy Walls wrote:
800 MB for 320x420 frames? It sounds like your app has gooned its
requested buffer size.
That's an understatement. :-)
<wild speculation>
This might be due to endianess differences between MIPS abd x86 and
your app only being written and tested on x86.
</wild speculation>
My speculation too. I don't know where that number comes from; the
same app works fine with the saa7115 driver if I switch frame
grabbers. I'll have to do some fiddling with the code to figure out
where the problem lies. It's some interaction between the app and
the cx231xx driver.
HAH!
This simple patch fixes it on my MIPS platform - not tested on other
architectures as I don't have them readily available running a newer
kernel:
OK, too groggy last night with my own success... Here's the better
solution. Should work on all architectures.
diff -U3
/data10/home/yan/openwrt/backfire/trunk/build_dir/linux-brcm47xx/linux-3.0.3/drivers/media/video/cx231xx/cx231xx-pcb-cfg.c
cx231xx-pcb-cfg.c
---
/data10/home/yan/openwrt/backfire/trunk/build_dir/linux-brcm47xx/linux-3.0.3/drivers/media/video/cx231xx/cx231xx-pcb-cfg.c
2011-08-17 10:57:16.000000000 -0700
+++ cx231xx-pcb-cfg.c 2011-12-13 05:50:36.000000000 -0800
@@ -672,7 +672,9 @@
pcb config it is related to */
cx231xx_read_ctrl_reg(dev, VRT_GET_REGISTER, BOARD_CFG_STAT, data, 4);
- config_info = *((u32 *) data);
+ //config_info = *((u32 *) data);
+ config_info = ((u32)(*(data))) + (((u32)(*(data+1))) << 8) +
(((u32)(*(data+2))) << 16) + (((u32)(*(data+3))) << 24);
+ cx231xx_info("config_info %x\n",config_info);
usb_speed = (u8) (config_info & 0x1);
/* Verify this device belongs to Bus power or Self power device */
--
Few people are capable of expressing with equanimity opinions which differ from the prejudices of their social environment. Most people are even incapable of forming such opinions.
Albert Einstein
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