Hi,
I am using an R7S721033VCFP with Linux 4.9.98. I would like to use my target as a flash drive device to transfer files between the host(PC)-device(RZ/A1) and use the same port USB at the same time as a serial port.
I have enabled USB Gadget to use CDC Composite (ACM and Mass storage).
In my device tree I did the following modification:
/* USB Function ch0 */ &usbhs0 { status = "okay"; } ; |
But neither of both functions (ACM or Mass Storage) are working. The driver (e.g:/dev/ttyGS0) is not create.
In my serial console log debug I have:
| usbcore: registered new interface driver cdc_acm cdc_acm: USB Abstract Control Model driver for USB modems and ISDN adapters usbcore: registered new interface driver usb-storage usbcore: registered new interface driver usbserial usbcore: registered new interface driver usbserial_generic usbserial: USB Serial support registered for generic usbcore: registered new interface driver ftdi_sio usbserial: USB Serial support registered for FTDI USB Serial Device renesas_usbhs e8010000.usbhs: host probed renesas_usbhs e8010000.usbhs: no transceiver found renesas_usbhs e8010000.usbhs: gadget probed renesas_usbhs e8010000.usbhs: probed Mass Storage Function, version: 2009/09/11 LUN: removable file: (no medium) no file given for LUN0 g_acm_ms e8010000.usbhs: failed to start g_acm_ms: -22 usbcore: registered new interface driver usbhid usbhid: USB HID core driver |
For the mass storage I was thinking to do it to select the file for driver mass storage to use:
| $ echo /dev/mtd0 > /sys/devices/platform/e8010000.usbhs/gadget/lun0/file |
But the directory doesn't exist.
Does someone have any idea why it is not working?
Thanks.