Marcel Holtmann wrote:
> Hi Xuan,
>   
Hello Marcel,
>   
>> The Broadcom BCM2045 chipset seems to be also one of those chipsets
>> which report the SCO maximum packet incorrectly. The attached patch
>> works around this problem. With this workaround, a bluetooth USB
>> dongle with this chipset is able to send SCO data correctly.
>>
>> The fix was verified using this USB dongle (MSI StarKey 2.0 (Ver
>> 222-BW))
>>         Bus 002 Device 004: ID 0a5c:2101 Broadcom Corp.
>>         Device Descriptor:
>>           bLength                18
>>           bDescriptorType         1
>>           bcdUSB               2.00
>>           bDeviceClass          224 Wireless
>>           bDeviceSubClass         1 Radio Frequency
>>           bDeviceProtocol         1 Bluetooth
>>           bMaxPacketSize0        64
>>           idVendor           0x0a5c Broadcom Corp.
>>           idProduct          0x2101
>>           bcdDevice            0.00
>>           iManufacturer           1 Broadcom Corp
>>           iProduct                2 BCM92045DG Non-UHE
>>           iSerial                 0
>>           bNumConfigurations      1
>>     
>
> is this a dongle with HID proxy support or not. If yes, then you need
> the HCI_RESET quirk otherwise you don't. So please check if it still
> works after not including the HCI_RESET quirk.
>   
It seems that HCI_RESET is not needed. (Interestingly, during testing, I
now encounter in about 20% of the cases very loud noise. This seems like
wrong data being played (like a synchronization error). However, this
problem happens both with and without HCI_RESET.)
> Regards
>
> Marcel
>
>   
ciao,
Xuân.