Hi Marcel,
On 10/7/2010 10:05 PM, Bala Shanmugam wrote:
On 10/7/2010 8:54 PM, Marcel Holtmann wrote:
Hi Bala,
Thanks Johannes. This would be better option to change PID in firmware
as blacklisting 3002 might create problems for 3011 chipsets.
Will try and let you people know.
The misbehaving 3002 needs to be blacklisted in btusb.c anyway. However
after loading the firmware to 3002 device, it should change its PID to
something else.
I am still trying to figure out if this is one stage firmware loading or
a two stage firmware loading. This is all pretty unclear and nobody has
answered this clearly so far.
Regards
Marcel
Marcel,
eeprom based 3011 chips comes up with PID 3000 giving control to DFU
driver [ath3k]. ath3k downloads the
firmware changing PID to 3002. Now btusb gets control.
In sflash based devices to reduce windows suspend/resume time we had a
small firmware in flash which
enables the device to get detected as Generic Bluetooth USB device with
PID 3002. So control reaches btusb when device is plugged in, leaving
no option for us to load the actual firmware.
Solution would be to blacklist 3002 in btusb, enable ath3k to get
control for both the devices, download the firmware and change PID to
3003 so that control with come to btusb.
Thanks for your time.
Regards,
Bala.
As you suggested we blacklisted PID 3002 in btusb and loaded firmware
using ath3k and it worked.
Thanks.
Many of our customers are using their own PIDs and blacklisting 3002
won't work for them.
Can we blacklist all the PIDs used by different customers?
We have another device similar to above one, it doesn't do a USB reset
after downloading firmware.
This is basically to reduce bring-up and suspend/resume time.
Can we add an infrastructure in btusb to download configuration or
firmware for these devices?
If not can you please suggest a solution for this device.
Thanks in advance.
Regards,
Bala.
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