Hi, while trying to make freerunner appear as a USB keyboard I noticed that gadgetfs exports only bulk endpoints:
$ ls /dev/gadget/ ep1-bulk ep1-bulk ep1-bulk ep2-bulk ep2-bulk ep2-bulk ep3-bulk ep3-bulk ep3-bulk ep4-bulk ep4-bulk ep4-bulk s3c2410_udc ep1-bulk ep1-bulk ep1-bulk ep2-bulk ep2-bulk ep2-bulk ep3-bulk ep3-bulk ep3-bulk ep4-bulk ep4-bulk ep4-bulk ep1-bulk ep1-bulk ep1-bulk ep2-bulk ep2-bulk ep2-bulk ep3-bulk ep3-bulk ep3-bulk ep4-bulk ep4-bulk ep4-bulk ep1-bulk ep1-bulk ep1-bulk ep2-bulk ep2-bulk ep2-bulk ep3-bulk ep3-bulk ep3-bulk ep4-bulk ep4-bulk ep4-bulk I then read the SC32442B manual chapter 13 on usb device controller. Its introduction mentions "USB device controller allows bulk transfer with DMA, interrupt and control transfer." However, the document does not mention interrupt transfers anywhere else and IN_CSR2_REG, bit ISO, makes me think that maybe only bulk transfers are possible: "Used only for endpoints whose transfer type is programmable. 1: Reserved 0: Configures endpoint to Bulk mode" Are the endpoints programmable? Does the hardware let me write a gadgetfs device that makes the phone appear as a USB keyboard that transmits data using interrupt transfers? best regards, Timo Lindfors _______________________________________________ devel mailing list devel@lists.openmoko.org https://lists.openmoko.org/mailman/listinfo/devel
