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19e2068015
This is a simple example of a composite gadget, combining two Communications Class Device (CDC) functions: ECM and ACM. This provides a clear example of how the composite gadget framework is intended to work. It's surprising that MS-Windows (or at least, XP and previous) won't "just work" with something this simple... One /proc/bus/usb/devices listing looks like: T: Bus=03 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#= 46 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=02(comm.) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=0525 ProdID=a4aa Rev= 3.01 S: Manufacturer=Linux 2.6.26-rc6-pnut with net2280 S: Product=CDC Composite Gadget C:* #Ifs= 4 Cfg#= 1 Atr=c0 MxPwr= 2mA I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=06 Prot=00 Driver=cdc_ether E: Ad=83(I) Atr=03(Int.) MxPS= 16 Ivl=32ms I: If#= 1 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_ether I:* If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_ether E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms I:* If#= 2 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=02 Prot=01 Driver=cdc_acm E: Ad=86(I) Atr=03(Int.) MxPS= 8 Ivl=32ms I:* If#= 3 Alt= 0 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_acm E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=05(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms Not all USB peripheral controller hardware can support this driver. All the highspeed-capable peripheral controllers with drivers now in the mainline kernel seem to support this, as does omap_udc. But many full speed controllers don't have enough endpoints, or (as with the PXA controllers) don't support altsettings. Lightly tested. Signed-off-by: David Brownell <dbrownell@users.sourceforge.net> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
52 lines
1.6 KiB
Makefile
52 lines
1.6 KiB
Makefile
#
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# USB peripheral controller drivers
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#
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ifeq ($(CONFIG_USB_GADGET_DEBUG),y)
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EXTRA_CFLAGS += -DDEBUG
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endif
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obj-$(CONFIG_USB_DUMMY_HCD) += dummy_hcd.o
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obj-$(CONFIG_USB_NET2280) += net2280.o
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obj-$(CONFIG_USB_AMD5536UDC) += amd5536udc.o
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obj-$(CONFIG_USB_PXA25X) += pxa25x_udc.o
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obj-$(CONFIG_USB_PXA27X) += pxa27x_udc.o
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obj-$(CONFIG_USB_GOKU) += goku_udc.o
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obj-$(CONFIG_USB_OMAP) += omap_udc.o
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obj-$(CONFIG_USB_LH7A40X) += lh7a40x_udc.o
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obj-$(CONFIG_USB_S3C2410) += s3c2410_udc.o
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obj-$(CONFIG_USB_AT91) += at91_udc.o
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obj-$(CONFIG_USB_ATMEL_USBA) += atmel_usba_udc.o
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obj-$(CONFIG_USB_FSL_USB2) += fsl_usb2_udc.o
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obj-$(CONFIG_USB_M66592) += m66592-udc.o
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#
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# USB gadget drivers
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#
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C_UTILS = composite.o usbstring.o config.o epautoconf.o
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g_zero-objs := zero.o f_sourcesink.o f_loopback.o $(C_UTILS)
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g_ether-objs := ether.o u_ether.o f_subset.o f_ecm.o $(C_UTILS)
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g_serial-objs := serial.o u_serial.o f_acm.o f_serial.o $(C_UTILS)
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g_midi-objs := gmidi.o usbstring.o config.o epautoconf.o
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gadgetfs-objs := inode.o
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g_file_storage-objs := file_storage.o usbstring.o config.o \
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epautoconf.o
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g_printer-objs := printer.o usbstring.o config.o \
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epautoconf.o
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g_cdc-objs := cdc2.o u_ether.o f_ecm.o \
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u_serial.o f_acm.o $(C_UTILS)
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ifeq ($(CONFIG_USB_ETH_RNDIS),y)
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g_ether-objs += f_rndis.o rndis.o
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endif
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obj-$(CONFIG_USB_ZERO) += g_zero.o
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obj-$(CONFIG_USB_ETH) += g_ether.o
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obj-$(CONFIG_USB_GADGETFS) += gadgetfs.o
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obj-$(CONFIG_USB_FILE_STORAGE) += g_file_storage.o
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obj-$(CONFIG_USB_G_SERIAL) += g_serial.o
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obj-$(CONFIG_USB_G_PRINTER) += g_printer.o
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obj-$(CONFIG_USB_MIDI_GADGET) += g_midi.o
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obj-$(CONFIG_USB_CDC_COMPOSITE) += g_cdc.o
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