From: Sebastian Kemper <sebastian_ml@gmx.net>
To: linux-media@vger.kernel.org
Cc: Jason.Dong@ite.com.tw
Subject: Re: AF9033 / IT913X: Avermedia A835B(1835) only works sporadically
Date: Wed, 11 Jun 2014 10:05:18 +0200 [thread overview]
Message-ID: <20140611080518.GA1664@wolfgang> (raw)
In-Reply-To: <97D30D57D08C2C49A26A3312F17290483B008B5E@TPEMAIL2.internal.ite.com.tw>
On Wed, Jun 11, 2014 at 05:31:47AM +0000, Jason.Dong@ite.com.tw wrote:
> Dear Sebastian,
>
> There is a RF performance issue in the af9033 driver of kernel 3.15.
> It is no problem in the it913x driver of kernel 3.14. There were some
> initial sequences not correct after the it913x driver was integrated
> into af9033 driver.
>
> BRs, Jason
Hello Jason,
Thank you very much for your reply!
So I guess this RF performance issue is not yet fixed. I was using fairly
recent media driver sources (linux-media-2014-05-26).
I'm using kernel 3.10.42. This morning I rebuilt it from scratch, only relying
on the in-kernel drivers instead of the experimental external ones. On the
first try it worked fine. The (reported) signal strength was lower than with
linux-media-2014-05-26. But no uncorrectable errors occurred.
To test, I shut down the computer and cold started it with the USB stick
attached. Unfortunately it failed.
Maybe my USB stick and computer aren't meant to get along :-)
...
Jun 11 09:28:03 meiner kernel: usb 1-2: new high-speed USB device number 2 using xhci_hcd
...
Jun 11 09:28:03 meiner kernel: usbcore: registered new interface driver dvb_usb_it913x
Jun 11 09:28:03 meiner kernel: it913x: Chip Version=02 Chip Type=9135
Jun 11 09:28:03 meiner kernel: it913x: Remote propriety (raw) modeit913x: Dual mode=0 Tuner Type=38
Jun 11 09:28:03 meiner kernel: it913x: Unknown tuner ID applying default 0x60<6>usb 1-2: dvb_usb_v2: found a 'Avermedia A835B(1835)' in cold state
Jun 11 09:28:03 meiner kernel: usb 1-2: dvb_usb_v2: downloading firmware from file 'dvb-usb-it9135-02.fw'
...
Jun 11 09:28:03 meiner kernel: it913x: FRM Starting Firmware Download
Jun 11 09:28:03 meiner kernel: it913x: FRM Firmware Download Completed - Resetting Device<6>usb 5-2: new low-speed USB device number 2 using uhci_hcd
...
Jun 11 09:28:03 meiner kernel: usb 1-2: dvb_usb_v2: 2nd usb_bulk_msg() failed=-110
Jun 11 09:28:03 meiner kernel: it913x: FRM Device not responding to reboot
Jun 11 09:28:03 meiner kernel: usb 1-2: dvb_usb_v2: 2nd usb_bulk_msg() failed=-110
Jun 11 09:28:03 meiner kernel: usb 1-2: dvb_usb_v2: 2nd usb_bulk_msg() failed=-110
Jun 11 09:28:03 meiner kernel: usb 1-2: dvb_usb_v2: 2nd usb_bulk_msg() failed=-110
Jun 11 09:28:03 meiner kernel: usb 1-2: dvb_usb_v2: 2nd usb_bulk_msg() failed=-110
Jun 11 09:28:03 meiner kernel: usb 1-2: dvb_usb_v2: 2nd usb_bulk_msg() failed=-110
Jun 11 09:28:03 meiner kernel: it913x: Failed to identify chip version applying 1
Jun 11 09:28:03 meiner kernel: it913x: FRM Failed to reboot device<6>usb 1-2: dvb_usb_v2: 'Avermedia A835B(1835)' error while loading driver (-19)
Jun 11 09:28:03 meiner kernel: usb 1-2: dvb_usb_v2: 'Avermedia A835B(1835)' successfully deinitialized and disconnected
...
Kind regards,
Sebastian
prev parent reply other threads:[~2014-06-11 8:05 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-10 12:50 AF9033 / IT913X: Avermedia A835B(1835) only works sporadically Sebastian Kemper
2014-06-11 5:31 ` Jason.Dong
2014-06-11 7:00 ` David Shirley
2014-06-11 8:11 ` Jason.Dong
[not found] ` <CAM187nBB=eueS7Na=CcXPLU0dC61w+fnHPY3HBZSK4NX7jO12Q@mail.gmail.com>
[not found] ` <97D30D57D08C2C49A26A3312F17290483B008E41@TPEMAIL2.internal.ite.com.tw>
2014-06-11 13:23 ` David Shirley
2014-06-12 2:00 ` Jason.Dong
2014-06-12 21:27 ` Antti Palosaari
2014-06-13 8:52 ` Sebastian Kemper
2014-06-11 8:05 ` Sebastian Kemper [this message]
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