Date: Sun, 25 Jun 2000 20:52:37 +0200 (CEST) From: Jimmy Olgeni <olgeni@uli.it> To: freebsd-stable@FreeBSD.ORG Subject: smbus trouble Message-ID: <Pine.BSF.4.21.0006251410280.340-100000@olgeni.localdomain.net>
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Hello there, I'm a FreeBSD newbie running a 4.0-STABLE system on a K7Pro motherboard (128MB ram). I'm trying to enable the smbus driver to use the temperature / voltage sensors. I enabled the following devices in my kernel: --- device iicbus device iicbb device iic device ic device iicsmb device smbus device intpm device smb device bktr # for Miro TV --- If I boot the system *without* the Miro TV board, the kernel does not detect the smbus: # dmesg | grep smb # If I use the 'consolehm' application from ports/sysutils, it says that /dev/smb0 is not configured, and exits (the file exists in /dev/). If I boot the system *with* the Miro TV, the (same) kernel detectes some smbus devices: --- bktr0: <BrookTree 878> mem 0xeddfd000-0xeddfdfff irq 9 at device 11.0 on pci0 iicbb0: <I2C generic bit-banging driver> on bti2c0 iicbus0: <Philips I2C bus> on iicbb0 master-only iicsmb0: <I2C to SMB bridge> on iicbus0 smbus0: <System Management Bus> on iicsmb0 smb0: <SMBus general purpose I/O> on smbus0 iic0: <I2C general purpose I/O> on iicbus0 smbus1: <System Management Bus> on bti2c0 smb1: <SMBus general purpose I/O> on smbus1 Warning - card vendor 0xbd11 (model 0x1200) unknown. Miro TV, Philips SECAM tuner. --- The Miro TV works fine under X, with fxtv-1.02. If I try to run chm (or chm -I to use the /dev/io interface) I get a kernel panic, trap 12, "supervisor page read, page not present", at address 0x8:0xc019e8f6. 'nm /kernel' returns ... c019e778 T device_get_devclass c019e76c T device_get_driver c019e7c4 T device_get_flags c019e8fc T device_get_ivars c019e784 T device_get_name c019e7a0 T device_get_nameunit ... If I disable the bktr device (and keep the Miro TV) the smbus disappears. If I keep the the bktr device (and remove the Miro TV) the smbus disappears again (!). Did I do something wrong in my kernel configuration? I have a core image in /var/crash but I don't know how to look into it :( Could anybody please help me? Thanks :-) bye, Jimmy To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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