PowerPC 460EX AD7416 Temperature Sensor
From: Henry Bausley <hidden>
Date: 2009-03-31 23:58:02
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 ]--- ********************************************************** Outbound scan for Spam or Virus by Barracuda at Delta Tau **********************************************************