I have a card reader with bluetooth controller built-in (Broadcom BCM2045A) and it stopped working suddenly some days ago as it appears down and I can't bring it up with hciconfig, this is what happens:
sudo hciconfig hci0 up
Can't init device hci0: Operation not supported (95)
This is the output of hcidump when running this command:
hcidump
HCI sniffer - Bluetooth packet analyzer ver 5.35
device: hci0 snap_len: 1500 filter: 0xffffffffffffffff
HCI Event: Command Complete (0x0e) plen 4
Reset (0x03|0x0003) ncmd 1
status 0x00
HCI Event: Command Complete (0x0e) plen 12
Read Local Supported Features (0x04|0x0003) ncmd 1
status 0x00
Features: 0xff 0xff 0x8d 0xfe 0x8f 0xf9 0x00 0x80
HCI Event: Command Complete (0x0e) plen 12
Read Local Version Information (0x04|0x0001) ncmd 1
status 0x00
HCI Version: 2.0 (0x3) HCI Revision: 0x2000
LMP Version: 2.0 (0x3) LMP Subversion: 0x410d
Manufacturer: Broadcom Corporation (15)
HCI Event: Command Complete (0x0e) plen 10
Read BD ADDR (0x04|0x0009) ncmd 1
status 0x00 bdaddr 25:7B:43:51:08:D3
HCI Event: Command Complete (0x0e) plen 11
Read Buffer Size (0x04|0x0005) ncmd 1
status 0x00
ACL MTU 1017:8 SCO MTU 64:0
HCI Event: Command Complete (0x0e) plen 7
Read Class of Device (0x03|0x0023) ncmd 1
status 0x00 class 0x000000
HCI Event: Command Complete (0x0e) plen 252
Read Local Name (0x03|0x0014) ncmd 1
status 0x00 name 'BCM2045'
HCI Event: Command Complete (0x0e) plen 6
Read Voice Setting (0x03|0x0025) ncmd 1
status 0x00 voice setting 0x0060
HCI Event: Command Complete (0x0e) plen 5
Read Number of Supported IAC (0x03|0x0038) ncmd 1
HCI Event: Command Complete (0x0e) plen 8
Read Current IAC LAP (0x03|0x0039) ncmd 1
IAC 0x9e8b33 (General Inquiry Access Code)
HCI Event: Command Complete (0x0e) plen 4
Set Event Filter (0x03|0x0005) ncmd 1
status 0x00
HCI Event: Command Complete (0x0e) plen 4
Write Connection Accept Timeout (0x03|0x0016) ncmd 1
status 0x00
HCI Event: Command Complete (0x0e) plen 68
Read Local Supported Commands (0x04|0x0002) ncmd 1
status 0x00
Commands: ffffff03feffcfffffffffff0300f8ff07
HCI Event: Command Complete (0x0e) plen 4
Write Inquiry Mode (0x03|0x0045) ncmd 1
status 0x00
HCI Event: Command Complete (0x0e) plen 14
Read Local Extended Features (0x04|0x0004) ncmd 1
status 0x00 page 1 max 0
Features: 0x00 0x00 0x00 0x00 0x00 0x00 0x00 0x00
HCI Event: Command Complete (0x0e) plen 4
Set Event Mask (0x03|0x0001) ncmd 1
status 0x00
HCI Event: Command Complete (0x0e) plen 4
Write Default Link Policy Settings (0x02|0x000f) ncmd 1
status 0x00
HCI Event: Command Complete (0x0e) plen 8
Read Page Scan Activity (0x03|0x001b) ncmd 1
status 0x00 interval 2048 window 18
HCI Event: Command Complete (0x0e) plen 4
Delete Stored Link Key (0x03|0x0012) ncmd 1
status 0x11 deleted 2048
Error: Unsupported Feature or Parameter Value