1STRUCT UIO_INFO(9) Device drivers infrastructure STRUCT UIO_INFO(9)
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6 struct_uio_info - UIO device capabilities
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9 struct uio_info {
10 struct uio_device * uio_dev;
11 const char * name;
12 const char * version;
13 struct uio_mem mem[MAX_UIO_MAPS];
14 struct uio_port port[MAX_UIO_PORT_REGIONS];
15 long irq;
16 unsigned long irq_flags;
17 void * priv;
18 irqreturn_t (* handler) (int irq, struct uio_info *dev_info);
19 int (* mmap) (struct uio_info *info, struct vm_area_struct *vma);
20 int (* open) (struct uio_info *info, struct inode *inode);
21 int (* release) (struct uio_info *info, struct inode *inode);
22 int (* irqcontrol) (struct uio_info *info, s32 irq_on);
23 };
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26 uio_dev
27 the UIO device this info belongs to
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29 name
30 device name
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32 version
33 device driver version
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35 mem[MAX_UIO_MAPS]
36 list of mappable memory regions, size==0 for end of list
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38 port[MAX_UIO_PORT_REGIONS]
39 list of port regions, size==0 for end of list
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41 irq
42 interrupt number or UIO_IRQ_CUSTOM
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44 irq_flags
45 flags for request_irq
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47 priv
48 optional private data
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50 handler
51 the deviceĀ“s irq handler
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53 mmap
54 mmap operation for this uio device
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56 open
57 open operation for this uio device
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59 release
60 release operation for this uio device
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62 irqcontrol
63 disable/enable irqs when 0/1 is written to /dev/uioX
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66Kernel Hackers Manual 2.6. June 2019 STRUCT UIO_INFO(9)