LINUX DEVICE DRIVERS 3rd edition phần 6 pps

... device, control how that single device looks to the host computer as a USB device. As the term “USB device drivers is very confus- ing, the USB developers have created the term “USB gadget drivers ... PCI devices contain. All PCI devices feature at least a 2 56- byte address space. The first 64 bytes are standard- ized, while the rest are device dependent. Figure 12-2 shows the lay...

Ngày tải lên: 09/08/2014, 04:21

... 43: 913 69 60 IO-SAPIC-level eth0 47: 267 22 1 46 IO-SAPIC-level usb-uhci 64 : 3 6 IO-SAPIC-edge ide0 80: 4 2 IO-SAPIC-edge keyboard 89: 0 0 IO-SAPIC-edge PS/2 Mouse 239: 560 6341 560 6052 SAPIC ... on the SPARC to as many as 2 56 on the IA -64 and a few other systems. It’s interesting to note that the number of interrupts defined on the x 86 is currently 224, not 16 as you may ex...

Ngày tải lên: 09/08/2014, 04:21

... idVendor/idProduct/bcdDevice that specifies those USB device- specific fields TYPE A string in the format bDeviceClass/bDeviceSubClass/bDeviceProtocol that speci- fies those USB device- specific fields If the bDeviceClass ... the usual pair of functions: int device_ create_file(struct device *device, struct device_ attribute *entry); void device_ remove_file(struct device *dev, st...

Ngày tải lên: 09/08/2014, 04:21

... 127 vector, 69 poll, 51, 163 – 169 , 513 poll_controller, 542 populate, 422 pread, 65 proc_read, 84 pwrite, 65 read, 50, 63 69 arguments to, 65 code for, 67 configuring DMA controllers, 4 56 f_pso field ... 502, 5 06 507 net _device_ stats, 505, 5 36 registration, 55–57 scatterlist, 462 serial_icounter_struct, 566 sk_buff, 529 struct device_ driver, 385 struct request, 4 76...

Ngày tải lên: 09/08/2014, 04:21

... USB Driver 3 46 USB Transfers Without Urbs 3 56 Quick Reference 360 14. The Linux Device Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 362 Kobjects, ... the third edition of Linux Device Drivers. The kernel has changed greatly since this book was first published, and we have tried to evolve the text to match. This edition covers...

Ngày tải lên: 09/08/2014, 04:21

... -f /dev/$ {device} [0-3] major=$(awk "\\$2= =\"$module\" {print \\$1}" /proc/devices) mknod /dev/$ {device} 0 c $major 0 mknod /dev/$ {device} 1 c $major 1 mknod /dev/$ {device} 2 ... the cdev structure, num is the first device number to which this device responds, and count is the number of device numbers that should be associated with the device. Often count is on...

Ngày tải lên: 09/08/2014, 04:21

... scull_nr_devs; i++) { scull_devices[i].quantum = scull_quantum; scull_devices[i].qset = scull_qset; init_MUTEX(&scull_devices[i].sem); scull_setup_cdev(&scull_devices[i], i); } Note that ... used. ,ch 06. 8719 Page 143 Friday, January 21, 2005 10:44 AM This is the Title of the Book, eMatter Edition Copyright © 2005 O’Reilly & Associates, Inc. All rights reserved. 1 46 | Ch...

Ngày tải lên: 09/08/2014, 04:21

... delta inirq pid cpu command 60 761 39 0 0 4370 0 cat 60 761 40 1 1 4 368 0 cc1 60 761 41 1 1 4 368 0 cc1 60 761 41 0 1 2 0 ksoftirqd/0 60 761 41 0 1 2 0 ksoftirqd/0 60 761 41 0 1 2 0 ksoftirqd/0 As confirmed ... unloaded system: phon% dd bs=20 count=5 < /proc/jitsched 1 760 205 1 761 207 1 761 209 1 762 211 1 762 212 1 763 212 1 763 213 1 764 213 1 764 214 1 765 217 It’s i...

Ngày tải lên: 09/08/2014, 04:21

... is 16, which allows for the “full disk” device and 15 partitions. Some disk drivers use 64 minor numbers for each device. char disk_name[32]; Field that should be set to the name of the disk device. ... even ,ch15.1 367 6 Page 442 Friday, January 21, 2005 11:04 AM This is the Title of the Book, eMatter Edition Copyright © 2005 O’Reilly & Associates, Inc. All rights reserved. 46...

Ngày tải lên: 09/08/2014, 04:21

... for fiber-channel devices, alloc_fddidev (< ;linux/ fddidevice.h>) for FDDI devices, or alloc_trdev (< ;linux/ trdevice.h>) for token ring devices. snull could use alloc_etherdev without ... Writers of drivers for other types of devices may want to take advantage of one of the other helper functions, such as alloc_fcdev (defined in < ;linux/ fcdevice.h>) for fiber-channel de...

Ngày tải lên: 09/08/2014, 04:21