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libusb-0.1.12在lua5.1.x下的移植, openwrt下自测成功

分类： 项目管理

2014-08-05 10:59:36

1. 源码参考这里 
2. 修改的Makefile

点击(此处)折叠或打开

  1. HAVEUSB = 1
  2. OPENWRT = 1

  4. ifeq ($(OPENWRT), 1)
  5.     #CC = ~/OpenWrt-SDK-ar71xx-for-linux-i486-gcc-4.6-linaro_uClibc-0.9.33.2/staging_dir/toolchain-mips_r2_gcc-4.6-linaro_uClibc-0.9.33.2/bin/mips-openwrt-linux-gcc
  6.     CC = ~/OpenWrt-Toolchain-ar71xx-for-mips_r2-gcc-4.6-linaro_uClibc-0.9.33.2/toolchain-mips_r2_gcc-4.6-linaro_uClibc-0.9.33.2/bin/mips-openwrt-linux-gcc
  7.   #CC = ~/OpenWrt-Toolchain-ramips-for-mipsel_24kec+dsp-gcc-4.6-linaro_uClibc-0.9.33.2/toolchain-mipsel_24kec+dsp_gcc-4.6-linaro_uClibc-0.9.33.2/bin/mipsel-openwrt-linux-gcc
  8.     CFLAGS += -I ~/openwrt-lib/include -L ~/openwrt-lib/lib

  10. else
  11.     CC = gcc
  12. endif

  14. CFLAGS += -Wall -O2
  15. CFLAGS1 += -fPIC -shared        #仅so 文件需要

  17. ifeq ($(HAVEUSB), 1)
  18.     LFLAGS += -lusb
  19. endif

  21. #可执行文件名和相关的obj文件
  22. #so的名称必须和c中代码对应
  23. SHAREOBJ = lualibusb.so
  24. SRCS += lualibusb.c

  26. #以下无需修改
  27. OBJS = $(SRCS:.c=.o)

  29. all: SO_FILE

  31. SO_FILE: $(OBJS)
  32.     $(CC) $(CFLAGS) $(CFLAGS1) $(SRCS) -o $(SHAREOBJ) $(LFLAGS)

  34. .PHONY: clean
  35. clean:
  36.     @echo "cleanning project"
  37.     $(RM) *.a $(OBJS) *~ *.so *.lo $(SHAREOBJ)
  38.     @echo "clean completed"
3. 修改后的lua的测试代码

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  1. --[[
  2. libusb-0.1.12的lua调用例程
  3. Authors: Jorge Visca, Andres Aguirre
  4. MINA - INCO - Facultad de Ingeniería - UDELAR
  5. http://luaforge.net/projects/lualibusb
  6. ]]--

  8. print("--> Hello LUA, qiushui_007 test!")

  10. --assert(package.loadlib("Debug/libluausb.so","luaopen_libusb"))()
  11. local libusb = require "lualibusb"
  12. --libusb.find_busses()
  13. --libusb.find_devices()

  15. print ("\n------------------------------------")
  16. print ("-- A few exported constants:")
  17. print ("USB_CLASS_HUB", USB_CLASS_HUB)
  18. print ("USB_DT_STRING", USB_DT_STRING)

  20. --[[
  21. print ("\n------------------------------------")
  22. print ("-- Dumping libusb:", libusb)
  23. for k, _ in pairs(libusb) do
  24.     print (k)
  25. end
  26. ]]--

  28. local buses = libusb.get_busses()
  29. local last_device

  31. print ("\n------------------------------------")
  32. print ("-- Dumping buses&devices:", buses)
  33. for dirname, bus in pairs(buses) do
  34.     --print (k)
  35.     local devices = libusb.get_devices(bus)
  36.     for filename, device in pairs(devices) do

  38.         local descriptor = libusb.device_descriptor(device)
  39.         print ("Bus: " .. dirname, "Device: " .. filename,
  40.                 "VID:PID : " .. string.format("%04x:%04x", descriptor.idVendor, descriptor.idProduct)) --, "desc:", descriptor.iProduct, s or err)
  41.         last_device = device

  43.     end

  45. end

  47. print ("\n------------------------------------")
  48. print ("-- Device descriptor:", last_device)
  49. local descriptor = libusb.device_descriptor(last_device)
  50. for k, v in pairs(descriptor) do
  51.     print (k, v)
  52. end

  54. print ("\n------------------------------------")
  55. print ("-- Device configuration:", last_device)
  56. local config = libusb.device_config(last_device)
  57. for k, v in pairs(config) do
  58.     print (k, v)
  59. end

  61. print ("\n------------------------------------")
  62. print ("-- Interface settings:", last_device)
  63. local altsettings = libusb.interface_alt_settings(config.interface)
  64. for k, v in pairs(altsettings) do
  65.     print ("+ Alternative", k, v)
  66.     for ka, va in pairs(v) do
  67.         print (ka, va)
  68.     end
  69. end

4. 将so和lua文件拷贝到WR703N上, 运行结果
4.1 U口不接任何设备

点击(此处)折叠或打开

  1. root@OpenWrt:/xutest# lua libusb.lua
  2. --> Hello LUA, qiushui_007

  4. ------------------------------------
  5. -- A few exported constants:
  6. USB_CLASS_HUB 9
  7. USB_DT_STRING 3

  9. ------------------------------------
  10. -- Dumping buses&devices: table: 0x45e260
  11. Bus: 001 Device: 001 VID:PID : 1d6b:0002

  13. ------------------------------------
  14. -- Device descriptor: userdata: 0x466dd8
  15. bDeviceProtocol 1
  16. bMaxPacketSize0 64
  17. bDeviceSubClass 0
  18. bLength 18
  19. bNumConfigurations 1
  20. bcdUSB 512
  21. iSerialNumber 1
  22. iProduct 2
  23. bcdDevice 771
  24. iManufacturer 3
  25. bDescriptorType 1
  26. idProduct 2
  27. bDeviceClass 9
  28. idVendor 7531

  30. ------------------------------------
  31. -- Device configuration: userdata: 0x466dd8
  32. bmAttributes 224
  33. iConfiguration 0
  34. MaxPower 0
  35. extra
  36. bConfigurationValue 1
  37. wTotalLength 25
  38. bDescriptorType 2
  39. bLength 9
  40. bNumInterfaces 1
  41. interface userdata: 0x45ef00

  43. ------------------------------------
  44. -- Interface settings: userdata: 0x466dd8
  45. + Alternative 0 table: 0x465518
  46. bInterfaceSubClass 0
  47. bInterfaceClass 9
  48. bLength 9
  49. bNumEndpoints 1
  50. bInterfaceNumber 0
  51. extra
  52. iInterface 0
  53. bDescriptorType 4
  54. bInterfaceProtocol 0
  55. endpoint userdata: 0x464460
  56. bAlternateSetting 0
  57. root@OpenWrt:/xutest

4.2 接上CR95HF, VID = 0x0483, PID = 0xd0d0

点击(此处)折叠或打开

  1. root@OpenWrt:/xutest# lua libusb.lua
  2. --> Hello LUA, qiushui_007

  4. ------------------------------------
  5. -- A few exported constants:
  6. USB_CLASS_HUB 9
  7. USB_DT_STRING 3

  9. ------------------------------------
  10. -- Dumping buses&devices: table: 0x539260
  11. Bus: 001 Device: 001 VID:PID : 1d6b:0002
  12. Bus: 001 Device: 009 VID:PID : 0483:d0d0

  14. ------------------------------------
  15. -- Device descriptor: userdata: 0x541dd8
  16. bDeviceProtocol 0
  17. bMaxPacketSize0 64
  18. bDeviceSubClass 0
  19. bLength 18
  20. bNumConfigurations 1
  21. bcdUSB 512
  22. iSerialNumber 3
  23. iProduct 2
  24. bcdDevice 512
  25. iManufacturer 1
  26. bDescriptorType 1
  27. idProduct 53456
  28. bDeviceClass 0
  29. idVendor 1155

  31. ------------------------------------
  32. -- Device configuration: userdata: 0x541dd8
  33. bmAttributes 128
  34. iConfiguration 0
  35. MaxPower 100
  36. extra
  37. bConfigurationValue 1
  38. wTotalLength 41
  39. bDescriptorType 2
  40. bLength 9
  41. bNumInterfaces 1
  42. interface userdata: 0x539f00

  44. ------------------------------------
  45. -- Interface settings: userdata: 0x541dd8
  46. + Alternative 0 table: 0x540880
  47. bInterfaceSubClass 0
  48. bInterfaceClass 3
  49. bLength 9
  50. bNumEndpoints 2
  51. bInterfaceNumber 1
  52. extra !
  53. iInterface 14
  54. bDescriptorType 4
  55. bInterfaceProtocol 0
  56. endpoint userdata: 0x53ad28
  57. bAlternateSetting 0
  58. root@OpenWrt:/xutest

4.3 接上DS9490R, VID = 0x04fa, PID = 0x2490

点击(此处)折叠或打开

  1. root@OpenWrt:/xutest# lua libusb.lua
  2. --> Hello LUA, qiushui_007

  4. ------------------------------------
  5. -- A few exported constants:
  6. USB_CLASS_HUB 9
  7. USB_DT_STRING 3

  9. ------------------------------------
  10. -- Dumping buses&devices: table: 0x619260
  11. Bus: 001 Device: 001 VID:PID : 1d6b:0002
  12. Bus: 001 Device: 010 VID:PID : 04fa:2490

  14. ------------------------------------
  15. -- Device descriptor: userdata: 0x621dd8
  16. bDeviceProtocol 255
  17. bMaxPacketSize0 8
  18. bDeviceSubClass 255
  19. bLength 18
  20. bNumConfigurations 1
  21. bcdUSB 256
  22. iSerialNumber 0
  23. iProduct 0
  24. bcdDevice 2
  25. iManufacturer 0
  26. bDescriptorType 1
  27. idProduct 9360
  28. bDeviceClass 255
  29. idVendor 1274

  31. ------------------------------------
  32. -- Device configuration: userdata: 0x621dd8
  33. bmAttributes 224
  34. iConfiguration 0
  35. MaxPower 240
  36. extra
  37. bConfigurationValue 1
  38. wTotalLength 129
  39. bDescriptorType 2
  40. bLength 9
  41. bNumInterfaces 1
  42. interface userdata: 0x619f00

  44. ------------------------------------
  45. -- Interface settings: userdata: 0x621dd8
  46. + Alternative bInterfaceSubClass 255
  47. lua: libusb.lua:66: bad argument #1 to 'pairs' (table expected, got number)
  48. stack traceback:
  49.         [C]: in function 'pairs'
  50.         libusb.lua:66: in main chunk
  51.         [C]: ?
  52. root@OpenWrt:/xutest



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