PowerPC 460EX AD7416 Temperature Sensor

[Henry Bausley]

Does anyone know if the I2C temperature sensor is functioning on the AMCC 
460EX?
When I do a cat /proc/ad7416 I get the following crash.

Unable to handle kernel paging request for data at address 0x00000000
Faulting instruction address: 0xc02cbe28
Oops: Kernel access of bad area, sig: 11 [#1]
PowerPC 44x Platform
NIP: c02cbe28 LR: c023cec8 CTR: c023d314
REGS: ef107d90 TRAP: 0300   Not tainted  (2.6.28.7)
MSR: 00029000 <EE,ME>  CR: 88000444  XER: 00000000
DEAR: 00000000, ESR: 00000000
TASK = ef8590c0[2611] 'cat' THREAD: ef106000
GPR00: 00000000 ef107e40 ef8590c0 00000000 ef107e9c 00000000 00000c00 
ef107e98
GPR08: 00000000 c0330000 ffffffff c0330000 48000448 1001cb7c 100042bc 
100df49c
GPR16: 00000002 00000400 c032f014 c032efe4 ef107e9c ef107e98 bfffffff 
efb43a00
GPR24: ef61d000 00000000 ef107f20 ef107e98 00000c00 c0400000 00001000 
efb43a00
NIP [c02cbe28] mutex_lock+0x0/0x1c
LR [c023cec8] ad7416_read_temp+0x24/0x80
Call Trace:
[ef107e40] [00000400] 0x400 (unreliable)
[ef107e70] [c023d334] i2c_ad7416_read_proc+0x20/0x70
[ef107e90] [c00e8018] proc_file_read+0x108/0x334
[ef107ee0] [c00e2d3c] proc_reg_read+0x4c/0x70
[ef107ef0] [c00a54e8] vfs_read+0xb4/0x16c
[ef107f10] [c00a58e0] sys_read+0x4c/0x90
[ef107f40] [c000ea88] ret_from_syscall+0x0/0x3c
Instruction dump:
90010014 38000001 90030000 85230004 7f891800 419e000c 80690008 4bd50779
80010014 38210010 7c0803a6 4e800020 <7c001828> 3000ffff 7c00192d 40a2fff4
---[ end trace 774db769c3754abe ]---



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