em28xx?

[Andrew Gallatin]

Ahah!  Apparently linux mutexes are recursive!   The driver holds
dev->mutex and tries to lock it again.
If I comment out the outer level of taking/releasing the mutex
(attached) then the driver fully
attaches.  I guess a better patch would be to make the mutexes in your
shim layer recursive
as well.  At any rate, I now see:


em28xx: New device @ 480 Mbps (1b80:a340, interface 0, class 0)
em28xx #0: chip ID is em2870
em28xx #0: i2c eeprom 00: 1a eb 67 95 80 1b 40 a3 c0 13 6b 10 6a 22 00 00
em28xx #0: i2c eeprom 10: 00 00 04 57 00 0d 00 00 00 00 00 00 00 00 00 00
em28xx #0: i2c eeprom 20: 44 00 00 00 f0 10 01 00 00 00 00 00 5b 1c c0 00
em28xx #0: i2c eeprom 30: 00 00 20 40 20 80 02 20 01 01 00 00 00 00 00 00
em28xx #0: i2c eeprom 40: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
em28xx #0: i2c eeprom 50: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
em28xx #0: i2c eeprom 60: 00 00 00 00 00 00 00 00 00 00 22 03 55 00 53 00
em28xx #0: i2c eeprom 70: 42 00 20 00 32 00 38 00 37 00 30 00 20 00 44 00
em28xx #0: i2c eeprom 80: 65 00 76 00 69 00 63 00 65 00 00 00 00 00 00 00
em28xx #0: i2c eeprom 90: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
em28xx #0: i2c eeprom a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
em28xx #0: i2c eeprom b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
em28xx #0: i2c eeprom c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
em28xx #0: i2c eeprom d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
em28xx #0: i2c eeprom e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
em28xx #0: i2c eeprom f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
em28xx #0: EEPROM ID= 0x9567eb1a, EEPROM hash = 0x2888a312
em28xx #0: EEPROM info:
em28xx #0:      No audio on board.
em28xx #0:      500mA max power
em28xx #0:      Table at 0x04, strings=0x226a, 0x0000, 0x0000
em28xx #0: Identified as KWorld PlusTV 340U or UB435-Q (ATSC) (card=76)
em28xx #0: v4l2 driver version 0.1.2
em28xx #0: V4L2 video device registered as video0
tda18271 129-0060: creating new instance
TDA18271HD/C1 detected @ 129-0060
DVB: registering new adapter (em28xx #0)
DVB: registering adapter 0 frontend 0 (LG Electronics LGDT3304 VSB/QAM
Frontend)...
em28xx #0: Successfully loaded em28xx-dvb
Creating /dev/video0
Creating /dev/dvb/adapter0/demux0
Creating /dev/dvb/adapter0/dvr0
Creating /dev/dvb/adapter0/frontend0

Hurray!!

Drew
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