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Full Discussion: Parallel Port info?
Special Forums Hardware Filesystems, Disks and Memory Parallel Port info? Post 20387 by auswipe on Thursday 25th of April 2002 11:39:18 AM
Old 04-25-2002
Most Linux and BSD systems that I have used support the `dmesg` command that will give you vital information on your system.

The dmesg below is for my ports on a FreeBSD box:

Code:
sio0: configured irq 4 not in bitmap of probed irqs 0
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 8250
sio1: configured irq 3 not in bitmap of probed irqs 0
ppc0: parallel port not found.

I have them turned off in the BIOS, hence not too much information about them other than I know they use an old 8250 UART.
 

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STRUCT 
UIO_INFO(9) Device drivers infrastructure STRUCT UIO_INFO(9) NAME
struct_uio_info - UIO device capabilities SYNOPSIS
struct uio_info { struct uio_device * uio_dev; const char * name; const char * version; struct uio_mem mem[MAX_UIO_MAPS]; struct uio_port port[MAX_UIO_PORT_REGIONS]; long irq; unsigned long irq_flags; void * priv; irqreturn_t (* handler) (int irq, struct uio_info *dev_info); int (* mmap) (struct uio_info *info, struct vm_area_struct *vma); int (* open) (struct uio_info *info, struct inode *inode); int (* release) (struct uio_info *info, struct inode *inode); int (* irqcontrol) (struct uio_info *info, s32 irq_on); }; MEMBERS
uio_dev the UIO device this info belongs to name device name version device driver version mem[MAX_UIO_MAPS] list of mappable memory regions, size==0 for end of list port[MAX_UIO_PORT_REGIONS] list of port regions, size==0 for end of list irq interrupt number or UIO_IRQ_CUSTOM irq_flags flags for request_irq priv optional private data handler the device's irq handler mmap mmap operation for this uio device open open operation for this uio device release release operation for this uio device irqcontrol disable/enable irqs when 0/1 is written to /dev/uioX COPYRIGHT
Kernel Hackers Manual 2.6. July 2010 STRUCT UIO_INFO(9)
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