Wonder if anyone here is familiar with Linux's SCSI subsystem. I'm debugging a problem in the

rockusb

driver (this is what lets the BMC expose RK1's eMMC as

/dev/sda

despite Rockchip devices using a custom USB-MSC/SCSI-derived protocol for eMMC access) that's causing it to misreport the size of the eMMC. It's correct modulo 2^24 sectors, but the most significant byte is off. I just determined that it's because of the

OP_READ_FLASH_INFO

command reading only 3 bytes instead of the whole

flash_info

. In short, I'm wondering if I'm doing something dumb here: