[pvrusb2] HVR-1950 requires procreload=1?

[Mike Isely]

Roger:

I suspect we might be running different hardware.  Can you please send 
me your lsmod output once your HVR-1950 is loaded and running?  I 
suspect you're going to see "s5h1411" in the list - but in my case I get 
"s5h1409".  This would explain why I'm not seeing the problem.  That 
being the case I'm trying to figure out what exactly has changed.  We'll 
probably have to do further tests with additional debug flags enabled.

  -Mike


On Sun, 7 Jun 2009, Roger wrote:

> Here's a snip of linux/drivers/media/dvb/frontends/s5h1411.c.  The
> s5h1411_readreg wants to see "2" but is getting "-5" from the i2c bus.
> 
> 
> --- Snip ---
> 
> static u16 s5h1411_readreg(struct s5h1411_state *state, u8 addr, u8 reg)
> {
>     int ret;
>     u8 b0[] = { reg };
>     u8 b1[] = { 0, 0 };
> 
>     struct i2c_msg msg[] = {
>         { .addr = addr, .flags = 0, .buf = b0, .len = 1 },
>         { .addr = addr, .flags = I2C_M_RD, .buf = b1, .len = 2 } };
> 
>     ret = i2c_transfer(state->i2c, msg, 2);
>        
>     if (ret != 2)
>         printk(KERN_ERR "%s: readreg error (ret == %i)\n",
>             __func__, ret);
>     return (b1[0] << 8) | b1[1];
> }
> 
> --- Snip ---
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> On Sun, 2009-06-07 at 11:22 -0800, Roger wrote:
> > "procreload=1" seems to help, but isn't a viable solution.  Upon boot
> > from hibernate, this problem reoccurs.
> > 
> > Checking current module options:
> > $ cat /etc/modules.conf |grep pvrusb2
> > options pvrusb2 debug=1 ir_mode=1 procreload=1
> > 
> > 
> > Attaching dmesg log for the following scenario:
> > 
> > Got /dev/video0 and no /dev/dvb/*.  Unusable /dev/video0 (when trying to
> > play with mplayer).
> > 
> > 
> > What is notable to me are the following lines:
> > 
> > s5h1411_readreg: readreg error (ret == -5)
> > pvrusb2: unregistering DVB devices
> > device: 'dvb0.net0': device_unregister
> > 
> > 
> > s5h1411_readreg seems to be v4l-dvb related.
> > 
> > ret == -5 probably isn't a good thing.
> > 
> > 
> > 
> > Here's is an example of what should happen in dmesg:
> > 
> > 
> > cx25840' 2-0044: Video signal:              not present
> > cx25840' 2-0044: Detected format:           NTSC-M
> > cx25840' 2-0044: Specified standard:        NTSC-M
> > cx25840' 2-0044: Specified video input:     Composite 7
> > cx25840' 2-0044: Specified audioclock freq: 48000 Hz
> > cx25840' 2-0044: Detected audio mode:       mono
> > cx25840' 2-0044: Detected audio standard:   no detected audio standard
> > cx25840' 2-0044: Audio muted:               no
> > cx25840' 2-0044: Audio microcontroller:     detecting
> > cx25840' 2-0044: Configured audio standard: automatic detection
> > cx25840' 2-0044: Configured audio system:   BTSC
> > cx25840' 2-0044: Specified audio input:     Tuner (In8)
> > cx25840' 2-0044: Preferred audio mode:      stereo
> > cx25840' 2-0044: firmware: requesting v4l-cx25840.fw
> > device: '2-0044': device_add
> > PM: Adding info for No Bus:2-0044
> > device: '2-0044': device_unregister
> > PM: Removing info for No Bus:2-0044
> > cx25840' 2-0044: loaded v4l-cx25840.fw firmware (16382 bytes)
> > usb 3-4: firmware: requesting v4l-cx2341x-enc.fw
> > device: '3-4': device_add
> > PM: Adding info for No Bus:3-4
> > device: '3-4': device_unregister
> > PM: Removing info for No Bus:3-4
> > cx25840' 2-0044: 0x0000 is not a valid video input!
> > DVB: registering adapter 0 frontend 0 (Samsung S5H1411 QAM/8VSB
> > Frontend)...
> > device: 'dvb0.frontend0': device_add
> > PM: Adding info for No Bus:dvb0.frontend0
> > tda829x 2-0042: type set to tda8295
> > tda18271 2-0060: attaching existing instance
> > device: 'sn-6202710': device_add
> > PM: Adding info for No Bus:sn-6202710
> > 
> > Also note when comparing the two sets of dmesg log outputs here, the
> > timing of the call of function s5h1411_readreg seems to be several
> > seconds after the initialization of cx25840.  Could s5h1411_readreg is
> > either severely bugging-out or could it be a timing issue?
> > 
> >  
> > _______________________________________________
> > pvrusb2 mailing list
> > pvrusb2 at isely.net
> > http://www.isely.net/cgi-bin/mailman/listinfo/pvrusb2
> 

-- 

Mike Isely
isely @ isely (dot) net
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