On Wed, Aug 02, 2023 at 04:43:53PM -0700, Ron wrote: > Hello everyone, > > Thank you all for the help! > > I'm trying to modify the GadgetFS kernel driver to be able to handle > Vendor Specific Out requests to ep0. All of these transactions are > occuring on ep0. Right now the host is sending the SETUP transaction, > then an OUT transaction with vendor specific data, which is followed > by the device sending an IN transaction to acknowledge the whole > request. When polling the ep0 file descriptor in userspace, I can > receive the Vendor Specific SETUP transaction and the respective > bRequest, wValue, etc values from the SETUP transaction. However, I > can't figure out how to also get the data from the OUT transaction > into userspace. You just read that data from the ep0 file descriptor, same as you read the SETUP information (except that this data won't be encapsulated in a usb_gadgetfs_event structure). > I have tried modifying inode.c for gadgetFS but am not > sure where to begin to do this. No modifications should be needed. Alan Stern
